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Patent 2552516 Summary

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Claims and Abstract availability

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(12) Patent: (11) CA 2552516
(54) English Title: ENERGY TRANSMISSION CONTROL MOUNT
(54) French Title: SUPPORT DE COMMANDE DE TRANSMISSION D'ENERGIE
Status: Granted and Issued
Bibliographic Data
(51) International Patent Classification (IPC):
  • F16F 01/376 (2006.01)
  • E04B 01/98 (2006.01)
  • E04H 09/00 (2006.01)
  • F16F 01/373 (2006.01)
(72) Inventors :
  • DOWNEY, PAUL C. (Canada)
  • WILKINSON, WILLIAM T. (Canada)
(73) Owners :
  • PLITEQ INC.
(71) Applicants :
  • PLITEQ INC. (Canada)
(74) Agent: MARKS & CLERK
(74) Associate agent:
(45) Issued: 2014-04-29
(22) Filed Date: 2006-07-19
(41) Open to Public Inspection: 2008-01-19
Examination requested: 2010-06-03
Availability of licence: N/A
Dedicated to the Public: N/A
(25) Language of filing: English

Patent Cooperation Treaty (PCT): No

(30) Application Priority Data: None

Abstracts

English Abstract

An energy transmission control mount comprises a carrier having a first major surface, an opposite second major surface and an aperture provided therein. Channels are provided adjacent opposite ends of the first surface. Vibration dampening material is provided on the carrier. The vibration dampening material substantially lines the channels and the aperture and extends over at least a portion of the second surface.


French Abstract

Un dispositif de fixation de commande de transmission d'énergie comprend un support ayant une première surface principale, une deuxième surface principale opposée et une ouverture intégrée. Des canaux sont adjacents aux extrémités opposées de la première surface. Un matériau amortisseur de vibrations est présent sur le support. Le matériau amortisseur de vibrations est substantiellement aligné aux canaux et à l'ouverture et s'étend sur au moins une portion de la deuxième surface.

Claims

Note: Claims are shown in the official language in which they were submitted.


-7-
What is claimed is:
1. An energy transmission control mount comprising:
a carrier having a first major surface, an opposite second major surface
and an aperture provided therein;
channels adjacent opposite ends of said first major surface; and
vibration dampening material on said carrier, said vibration dampening
material substantially lining said channels and substantially lining said
aperture, the
vibration dampening material substantially lining said aperture being isolated
from the
vibration dampening material substantially lining said channels and extending
over at
least a portion of said second major surface and over at least a portion of
said first major
surface, the vibration dampening extending over said first major surface being
configured to retain a washer in alignment with said aperture.
2. An energy transmission control mount according to claim 1 wherein the
vibration dampening material extending over said second major surface is
configured to
define a series of spaced ribs.
3. An energy transmission control mount according to claim 2 wherein said
ribs are parallel and are generally equally spaced.
4. An energy transmission control mount according to any one of claims 1 to
3 wherein the vibration dampening material extending over said first major
surface is
configured to define a disc.
5. An energy transmission control mount according to claim 4 further
comprising a washer retained by said disc.
6. An energy transmission control mount according to claim 5 wherein the
vibration dampening material forming said disc also substantially lines the
aperture of
said washer and terminates at a flange overlying a portion the washer to
retain the washer
to said disc.

-8-
7. An energy transmission control mount according to claim 6 wherein said
flange is annular.
8. An energy transmission control mount according to any one of
claims 1 to
7 wherein opposite ends of said carrier are folded back over said first major
surface to
define said channels.
9. An energy transmission control mount according to claim 8 wherein
said
channels are sized to receive flanges of a furring channel.
10. An energy transmission control mount according to any one of
claims 1 to
9 wherein said vibration dampening material is permanently bonded to said
carrier.
11. An energy transmission control mount according to any one of
claims 1 to
wherein said carrier is formed of metal.
12. An energy transmission control mount assembly to reduce
transmission of
energy between a first building structure component and a second building
structure
component, comprising:
a channel-like member adapted to be secured to the first building structure
component;
a carrier receiving and retaining said channel-like member, said carrier
being adapted to be structurally secured to said second building structure
component and
having an aperture provided therein;
vibration dampening material acting between at least one of said channel-
like member and carrier, and said carrier and second building structure
component; and
a fastener passing through said aperture to secure said carrier to the
second building structure component, wherein the vibration dampening material
acts
between said carrier and said second building structure component and
substantially lines
said aperture to isolate the fastener from said carrier and wherein the
vibration

-9-
dampening material is configured to retain a washer in alignment with said
aperture
through which said fastener passes.
13. An energy transmission control mount assembly according to claim 12
wherein the vibration dampening material acts between both said channel-like
member
and carrier and said carrier and second building structure component.
14. An energy transmission control mount assembly according to claim 12 or
13 wherein said second building structure component is one of a wall stud and
masonry,
said first building structure component is one of drywall, plaster board and
gypsum and
said channel-like member is a furring channel.
15. An energy transmission control mount assembly according to claim 12 or
13 wherein said second building structure component is a joist and said first
building
structure component is one of a floor and ceiling.
16. An energy transmission control mount assembly according to claim 13
wherein said carrier is shaped to define channels receiving ends of said
channel-like
member, said channels being substantially lined with vibration dampening
material.
17. An energy transmission control mount assembly according to any one of
claims 11 to 16 wherein the vibration dampening material acting between said
carrier
and said second building structure component is configured to define a series
of spaced
ribs.
18. An energy transmission control mount assembly according to any one of
claims 11 to 17 wherein said vibration dampening material is permanently
bonded to said
carrier.
19. An energy transmission control mount according to claim 16 wherein
opposite ends of said carrier are folded back over said first major surface to
define said
channels.

-10-
20. An energy transmission control mount according to any one of claims 12
to 19 wherein said carrier is formed of metal.
21. An energy transmission control mount to act between a pair of
components comprising:
a carrier having a first major surface and an opposite second major surface
and an aperture provided therein;
vibration dampening material on said carrier, said vibration dampening
material substantially lining said aperture and extending over at least a
portion of said
second major surface and over at least a portion of said first major surface,
the vibration
dampening material extending over said second major surface being configured
to bear
against a first of said components and the vibration dampening material
extending over
said first surface being configured to retain a washer in alignment with said
aperture; and
retaining structure on the first major surface of said carrier configured to
retain a second of said components.
22. An energy transmission control mount according to claim 21 wherein
vibration dampening material is provided on said retaining structure to act
between said
retaining structure and said second component.
23. An energy transmission control mount according to claim 21 or 22
wherein the vibration dampening material extending over said second major
surface is
configured to define a series of spaced ribs.
24. An energy transmission control mount according to claim 23 wherein said
ribs are parallel and are generally equally spaced.
25. An energy transmission control mount according to any one of claims 21
to 24 wherein said vibration dampening material is permanently bonded to said
carrier.

-11-
26. An energy transmission control mount according to any one of claims 21
to 25 wherein said retaining structure comprises a pair of channels adjacent
opposite
ends of said first major surface.
27. An energy transmission control mount according to claim 26 wherein
opposite ends of said carrier are folded back over said first major surface to
define said
channels.
28. An energy transmission control mount according to claim 27 wherein said
channels are sized to receive flanges of a furring channel.
29. An energy transmission control mount according to any one of claims 21
to 28 wherein said carrier is formed of metal.
30. A building structure comprising:
a first building structure element;
a second building structure element;
an energy transmission control mount assembly to reduce transmission of
energy between said first building structure element and said second building
structure
element, said energy transmission control mount assembly comprising:
a channel-like member adapted to be secured to the first building
structure element;
a carrier receiving and retaining said channel-like member, said
carrier being adapted to be structurally secured to said second building
structure element,
said carrier having a first major surface and an opposite second major surface
and having
an aperture provided therein; and
vibration dampening material on said carrier, said vibration
dampening material substantially lining said aperture and extending over at
least a
portion of said second major surface and over at least a portion of said first
major
surface, the vibration dampening material extending over said second major
surface
being configured to bear against said second building structure element and
the vibration

-12-
dampening material extending over said first major surface being configured to
retain a
washer in alignment with said aperture; and
a fastener passing through said aperture to secure said carrier to the
second building structure element.
31. A building structure according to claim 30 wherein said second building
structure element is one of a wall stud and masonry, said first building
structure element
is one of drywall, plaster board and gypsum board and said channel-like member
is a
furring channel.
32. A building structure according to claim 30 or 31 wherein vibration
dampening material also acts between said channel-like member and said
carrier.
33. A building structure according to claim 32 wherein said carrier is
shaped
to define channels receiving ends of said channel-like member, said channels
being
substantially lined with vibration dampening material.
34. A building structure according to any one of claims 30 to 33 wherein
the
vibration dampening material acting between said carrier and said second
building
structure element is configured to define a series of spaced ribs, said ribs
contacting said
second building structure element.
35. A building structure according to any one of claims 30 to 34 wherein
said
vibration dampening material is permanently bonded to said carrier.
36. An energy transmission control mount according to claim 34 wherein said
ribs are parallel and are generally equally spaced.
37. A building structure comprising:
a first building structure component;
a second building structure component;

-13-
an energy transmission control mount assembly according to any one of
claims 1 to 11 and 21 to 29 acting between said first building structure
component and
said second building structure component to reduce transmission of energy
therebetween.
38. An energy transmission control mount to act between a pair of
components comprising:
a metal carrier having a first major surface and an opposite second major
surface and having an aperture provided therein sized to permit passage of a
fastener,
opposite ends of said carrier being folded back over said first major surface
to define
channels configured to retain a first of said components; and
vibration dampening material on said carrier, said vibration dampening
material lining said aperture and extending over at least a portion of said
second major
surface, the vibration dampening material extending over said second major
surface
having a ribbed surface to bear against a second of said components.
39. An energy transmission control mount according to claim 38 wherein the
ribs of said ribbed surface are parallel and are generally equally spaced.
40. An energy transmission control mount according to claim 38 or 39
wherein said vibration dampening material is permanently bonded to said
carrier.
41. An energy transmission control mount according to any one of claims 38
to 40 wherein said vibration dampening material also extends over a portion of
said first
major surface and is configured to retain a washer in alignment with said
aperture.
42. An energy transmission control mount according to any one of claims 38
to 41 wherein vibration dampening material also lines said channels.
43. An energy transmission control mount according to any one of claims 38
to 42 therein said vibration dampening material is formed of rubber.

Description

Note: Descriptions are shown in the official language in which they were submitted.


CA 02552516 2011-12-07
ENERGY TRANSMISSION CONTROL MOUNT
Field of the Invention
[0001] The present invention relates generally to energy transmission
control
and in particular, to an energy transmission control mount designed to reduce
transmission of energy such as vibration and sound between components such as
for
example, building structures.
Background of the Invention
[0002] Insulating building structures to inhibit the transmission of
vibration
and sound from one region to another is common in many environments. For
example, vibration dampening pads for use on floors to inhibit vibration from
traveling through floor surfaces are well known. Until recently, very little
was done
however to attempt to inhibit vibration and sound from travelling through
walls.
[0003] U.S. Patent No. 6,267,347 to Ryan et al. discloses an acoustic
mount
for isolating wall structures. The acoustic mount comprises a mounting clip, a
sound
absorbing inset and a bush. The mounting clip has an orifice defining a single
start
thread for engaging the thread on the outer surface of a stub on the sound
absorbing
insert. The sound absorbing insert has an insert for receiving the bush. The
sounding
absorbing insert is formed of soft rubber and has dimples thereon. The bush
when
received by the sound absorbing insert is isolated from the mounting clip.
[0004] In use, the mounting clip is placed either directly or indirectly in
contact with a thin wall or plaster board, while the bush is placed indirectly
in contact
with a block wall. The sound absorbing insert, which isolates the bush from
the
mounting clip, dampens the transmission of low frequency noise between the
block
wall and the thin wall or plaster board.
[0005] Another mount to isolate walls and ceilings is manufactured by
Kinetics Noise Control Inc. of Dublin, Ohio and is sold under the name
IsoMaxTm.
The IsoMax mount is in the form of a resilient sound isolation clip designed
to attach
to ceiling joists, wall studs or masonry. Layers of gypsum or plaster board
are hung
onto furring channels defined by the isolation clip.
[0006] Although the above mounts help to inhibit the transmission of
vibration and sound between structures, they are costly to manufacture,
complex and

CA 02552516 2011-12-07
- 2 -
expensive to consumers. It is therefore an object of the present invention to
provide a
novel energy transmission control mount.
Summary of the Invention
[0007] Accordingly, in one aspect there is provided an energy transmission
control mount comprising:
a carrier having a first major surface, an opposite second major surface
and an aperture provided therein;
channels adjacent opposite ends of said first major surface; and
vibration dampening material on said carrier, said vibration dampening
material substantially lining said channels and substantially lining said
aperture, the
vibration dampening material substantially lining said aperture being isolated
from the
vibration dampening material substantially lining said channels and extending
over at
least a portion of said second major surface and over at least a portion of
said first
major surface, the vibration dampening extending over said first major surface
being
configured to retain a washer in alignment with said aperture.
[0008] In one embodiment, the vibration dampening material is
configured to
define a series of spaced ribs. The ribs are parallel and are generally
equally spaced.
On the first surface, the vibration dampening material is configured to define
a disc.
A washer is disposed on the disc. The vibration dampening material
substantially
lines the aperture of the washer and terminates at a flange overlying a
portion of the
washer to retain the washer to the disc.
[0009] In one embodiment, the ends of the carrier are folded back
over the
first surface of the carrier to define the channels and are sized to receive
flanges of a
furring channel.
[0010] According to another aspect there is provided an energy
transmission
control mount assembly to reduce transmission of energy between a first
building
structure component and a second building structure component, comprising:
a channel-like member adapted to be secured to the first building
structure component;

CA 02552516 2011-12-07
-3 -
a carrier receiving and retaining said channel-like member, said carrier
being adapted to be structurally secured to said second building structure
component
and having an aperture provided therein;
vibration dampening material acting between at least one of said
channel-like member and carrier, and said carrier and second building
structure
component; and
a fastener passing through said aperture to secure said carrier to the
second building structure component, wherein the vibration dampening material
acts
between said carrier and said second building structure component and
substantially
lines said aperture to isolate the fastener from said carrier and wherein the
vibration
dampening material is configured to retain a washer in alignment with said
aperture
through which said fastener passes.
[0011] In one embodiment, the vibration dampening material acts
between
both the channel and carrier and the carrier and second building structure
component.
The vibration dampening material is permanently bonded to the carrier. An
aperture
is provided in the carrier through which a fastener passes to secure the
carrier to the
second building structure component.
100121 According to yet another aspect there is provided an energy
transmission control mount to act between a pair of components comprising:
a carrier having a first major surface and an opposite second major
surface and an aperture provided therein;
vibration dampening material on said carrier, said vibration dampening
material substantially lining said aperture and extending over at least a
portion of said
second major surface and over at least a portion of said first major surface,
the
vibration dampening material extending over said second major surface being
configured to bear against a first of said components and the vibration
dampening
material extending over said first surface being configured to retain a washer
in
alignment with said aperture; and
retaining structure on the first major surface of said carrier configured
to retain a second of said components.
100131 According to still yet another aspect there is provided an
building
structure comprising:

CA 02552516 2011-12-07
- 3a -
a first building structure element;
a second building structure element;
an energy transmission control mount assembly to reduce transmission
of energy between said first building structure element and said second
building
structure element, said energy transmission control mount assembly comprising:
a channel-like member adapted to be secured to the first
building structure element;
a carrier receiving and retaining said channel-like member, said
carrier being adapted to be structurally secured to said second building
structure
element, said carrier having a first major surface and an opposite second
major
surface and having an aperture provided therein; and
vibration dampening material on said carrier, said vibration
dampening material substantially lining said aperture and extending over at
least a
portion of said second major surface and over at least a portion of said first
major
surface, the vibration dampening material extending over said second major
surface
being configured to bear against said second building structure element and
the
vibration dampening material extending over said first major surface being
configured
to retain a washer in alignment with said aperture; and
a fastener passing through said aperture to secure said carrier to the
second building structure element.
[0014] The energy transmission control mount is effective, easy to
install and
inexpensive to manufacture. Its one-piece construction makes the energy
transmission control mount simple to use.
Brief Description of the Drawings
[0015] Embodiments will now be described more fully with reference to
the
accompanying drawings in which:
[0016] Figure 1 is a perspective view of an energy transmission
control
mount;
[0017] Figure 2 is a rear elevational view of the energy transmission
control
mount of Figure 1; and

CA 02552516 2006-07-19
- 4 -
[0018] Figure 3 is a side cross-sectional view of the energy
transmission
control mount interposed between a wall stud and drywall and secured to the
wall stud
via a fastener.
Detailed Description of the Embodiments
[0019] Turning now to Figures 1 and 2, an energy transmission control
mount
for isolating components such as for example, building structures is shown and
is
generally identified by reference numeral 10. In this particular example,
energy
transmission control mount 10 acts between a wall stud and a wall structure
such as
for example drywall, plaster board, gypsum or the like to reduce the
transmission of
energy between the wall stud and the wall structure. As can be seen, the
energy
transmission control mount 10 comprises a generally rectangular carrier 12
formed of
metal such as for example steel. The top and bottom ends 14 and 16 of the
carrier 12
are folded back over the front surface 18 of the carrier 12 to define channels
20.
Vibration dampening material 22 substantially lines each of the channels 20. A
central aperture 26 is also provided through the carrier 12. Vibration
dampening
material 30 substantially lines the aperture 26 and extends over a portion of
both the
front surface 18 and the back surface 32 of the carrier 12. The vibration
dampening
material 22 and 30 may be for example polyurethane bonded recycled rubber,
polyether urethane foam or other suitable energy absorbing material.
[0020] On the back surface 32, the vibration dampening material 30 is
configured to define a plurality of vertically and generally equally spaced,
horizontal
ribs 34. On the front surface 18, the vibration dampening material 30 is
configured to
define a disc 36 on which a washer 38 is disposed. The vibration dampening
material
30 substantially lines the aperture of the washer 38 and forms an annular
flange 40
over the washer 38 to retain the washer on the disc 36. The vibration
dampening
material 22 substantially lining the channels 20 is isolated from the
vibration
dampening material 30 substantially lining the aperture 26 and extending over
the
front surface 18 of the carrier 12. The vibration dampening material 22 and 30
is
permanently bonded to the carrier 12

CA 02552516 2006-07-19
-5-
100211 Turning now to Figure 3, the energy transmission control
mount 10 is
shown in use interposed between a wall stud 50 and drywall 52. Energy
transmission
control mount 10 is designed to increase the sound transmission loss
characteristics of
the wall stud and drywall assembly. During installation of the energy
transmission
control mount 10, a fastener 54 is passed through the aligned apertures of the
washer
38 and carrier 12 and engages the wall stud 50 to secure the energy
transmission
control mount 10 to the wall stud 50. The head of the fastener 54 rests on the
flange
40 to isolate the head of the fastener 54 from the washer 38. In this
position, the ribs
34 bear directly against the wall stud 50. A standard furring channel 56,
typically
formed of steel, is snapped into the front of the carrier 12 by inserting its
upper and
lower flanges 58 and 60, respectively, into the lined channels 20 thereby to
retain the
furring channel. Drywall fasteners (not shown) pass through the drywall 52 and
engage the furring channel 56 to secure the drywall 52 to the furring channel
56. In
this manner, the energy transmission control mount 10 acts between the drywall
52
and the wall stud 52 to reduce energy from being transmitted therebetween.
[0022] If energy such as vibration or sound is transmitted to the
wall stud 50,
the ribs 34 resist transmission of that energy to the carrier 12. The
vibration
dampening material 30 substantially lining the apertures of the carrier 12 and
the
washer 38 resists transmission of energy to the fastener 54. Energy that is
transmitted
to the carrier 12 moves to the extremities of the carrier. The vibration
dampening
material 22 lining the channels 20 resists transmission of this energy to the
furring
channel 56. In this manner, the energy transmission control mount 10 reduces
the
transfer of energy between the wall stud 50 and the furring channel 56 and
hence the
drywall 52.
[0023] In the example described above, the energy transmission control
mount
is shown interposed between a wall stud 50 and drywall 52. Those of skill in
the art
will however appreciate that the energy transmission control mount may be used
to
isolate other building structures such as for example floors and joists,
masonry and
wall studs, exterior walls and wall studs etc.
[0024] Although the energy transmission control mount is particularly
suited
to isolate building structures, the energy transmission control mount may be
used in

CA 02552516 2006-07-19
- 6 -
other environments to isolate components to inhibit vibration/sound from
propagating
between components. For example, the energy transmission control mount may be
used in automobiles as an engine mount, or as a mount for vehicle body parts.
[0025] Although embodiments have been described, those of skill in the
art
will appreciate that variations and modifications may be made without
departing from
the spirit and scope thereof as defined by the appended claims.

Representative Drawing
A single figure which represents the drawing illustrating the invention.
Administrative Status

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Event History

Description Date
Inactive: Recording certificate (Transfer) 2022-10-28
Inactive: Multiple transfers 2022-09-19
Inactive: Multiple transfers 2022-09-19
Change of Address or Method of Correspondence Request Received 2022-09-19
Inactive: Recording certificate (Transfer) 2021-01-21
Change of Address or Method of Correspondence Request Received 2021-01-04
Inactive: Single transfer 2021-01-04
Common Representative Appointed 2019-10-30
Common Representative Appointed 2019-10-30
Inactive: Office letter 2018-08-10
Letter Sent 2018-07-13
Letter Sent 2018-07-13
Inactive: Multiple transfers 2018-07-05
Grant by Issuance 2014-04-29
Inactive: Cover page published 2014-04-28
Inactive: Office letter 2014-02-24
Notice of Allowance is Issued 2014-02-24
Inactive: Q2 passed 2014-02-14
Inactive: Approved for allowance (AFA) 2014-02-14
Letter Sent 2013-12-16
Amendment Received - Voluntary Amendment 2013-12-06
Reinstatement Request Received 2013-12-06
Inactive: Final fee received 2013-12-06
Final Fee Paid and Application Reinstated 2013-12-06
Withdraw from Allowance 2013-12-06
Pre-grant 2013-12-06
Deemed Abandoned - Conditions for Grant Determined Not Compliant 2012-12-06
Letter Sent 2012-06-06
Notice of Allowance is Issued 2012-06-06
Notice of Allowance is Issued 2012-06-06
Inactive: Approved for allowance (AFA) 2012-06-01
Amendment Received - Voluntary Amendment 2011-12-07
Inactive: S.30(2) Rules - Examiner requisition 2011-06-07
Letter Sent 2010-06-16
Request for Examination Received 2010-06-03
Request for Examination Requirements Determined Compliant 2010-06-03
All Requirements for Examination Determined Compliant 2010-06-03
Extension of Time to Top-up Small Entity Fees Requirements Determined Compliant 2008-07-25
Application Published (Open to Public Inspection) 2008-01-19
Inactive: Cover page published 2008-01-18
Inactive: IPC assigned 2007-01-02
Inactive: First IPC assigned 2007-01-02
Inactive: IPC assigned 2007-01-02
Inactive: IPC assigned 2007-01-02
Inactive: IPC assigned 2007-01-02
Inactive: Filing certificate - No RFE (English) 2006-08-15
Application Received - Regular National 2006-08-15

Abandonment History

Abandonment Date Reason Reinstatement Date
2013-12-06
2012-12-06

Maintenance Fee

The last payment was received on 2013-06-03

Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following

  • the reinstatement fee;
  • the late payment fee; or
  • additional fee to reverse deemed expiry.

Patent fees are adjusted on the 1st of January every year. The amounts above are the current amounts if received by December 31 of the current year.
Please refer to the CIPO Patent Fees web page to see all current fee amounts.

Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
PLITEQ INC.
Past Owners on Record
PAUL C. DOWNEY
WILLIAM T. WILKINSON
Past Owners that do not appear in the "Owners on Record" listing will appear in other documentation within the application.
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Document
Description 
Date
(yyyy-mm-dd) 
Number of pages   Size of Image (KB) 
Claims 2006-07-18 6 185
Drawings 2006-07-18 2 27
Abstract 2006-07-18 1 11
Description 2006-07-18 6 257
Representative drawing 2007-12-26 1 9
Description 2011-12-06 7 313
Claims 2011-12-06 6 236
Claims 2013-12-05 7 293
Representative drawing 2014-03-30 1 7
Maintenance fee payment 2024-04-07 1 26
Filing Certificate (English) 2006-08-14 1 158
Reminder of maintenance fee due 2008-03-19 1 113
Acknowledgement of Request for Examination 2010-06-15 1 177
Commissioner's Notice - Application Found Allowable 2012-06-05 1 161
Courtesy - Abandonment Letter (NOA) 2013-02-19 1 164
Notice of Reinstatement 2013-12-15 1 170
Courtesy - Certificate of Recordal (Transfer) 2021-01-20 1 414
Courtesy - Office Letter 2018-08-09 1 49
Fees 2008-07-16 1 60
Fees 2009-07-09 1 64
Fees 2010-07-14 1 68
Fees 2011-07-17 1 64
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