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(12) Patent: | (11) CA 2212810 |
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(54) English Title: | PROPELLER |
(54) French Title: | HELICE |
Status: | Expired and beyond the Period of Reversal |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | OSLER, HOSKIN & HARCOURT LLP |
(74) Associate agent: | |
(45) Issued: | 2003-12-16 |
(22) Filed Date: | 1997-08-12 |
(41) Open to Public Inspection: | 1999-02-12 |
Examination requested: | 2000-05-23 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | None |
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A propeller is made up of a propelling unit having a plurality of blades, a
driving unit for driving the propelling unit, and a plurality of deformable
transmission units located between the propelling unit and the driving
unit such that the transmission units are retained in the retaining slots of
the propelling unit and the driving unit. The transmission units are
tubular in shape and capable of deforming to absorb an impact force
exerting on the transmission units in a direction perpendicular to the
longitudinal axis of the transmission units, so as to safeguard the
structural integrity of the propeller at such time when the propeller in
motion is impacted on by a foreign object.
La présente invention a pour objet une hélice comportant une pluralité de pales, une source motrice assurant l'entraînement de l'hélice, et une pluralité d'organes de transmission déformables interposés entre l'hélice et la source motrice, qui sont retenus dans les fentes de retenue de l'hélice et de la source motrice. Les organes de transmission sont de forme tubulaire et capables de se déformer pour absorber la force exercée sur les organes de transmission en cas d'impact dans une direction perpendiculaire à l'axe longitudinal de la transmission afin de préserver l'intégrité structurale de l'hélice au cas où l'hélice en mouvement viendrait en contact avec un corps étranger.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
2024-08-01:As part of the Next Generation Patents (NGP) transition, the Canadian Patents Database (CPD) now contains a more detailed Event History, which replicates the Event Log of our new back-office solution.
Please note that "Inactive:" events refers to events no longer in use in our new back-office solution.
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Description | Date |
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Inactive: Agents merged | 2013-10-23 |
Time Limit for Reversal Expired | 2012-08-13 |
Letter Sent | 2011-08-12 |
Small Entity Declaration Request Received | 2010-07-30 |
Small Entity Declaration Determined Compliant | 2010-07-30 |
Small Entity Declaration Request Received | 2009-07-30 |
Small Entity Declaration Determined Compliant | 2009-07-30 |
Small Entity Declaration Determined Compliant | 2007-07-23 |
Inactive: IPC from MCD | 2006-03-12 |
Inactive: IPC from MCD | 2006-03-12 |
Grant by Issuance | 2003-12-16 |
Inactive: Cover page published | 2003-12-15 |
Pre-grant | 2003-09-19 |
Inactive: Final fee received | 2003-09-19 |
Letter Sent | 2003-07-28 |
Notice of Allowance is Issued | 2003-07-28 |
Notice of Allowance is Issued | 2003-07-28 |
Inactive: Approved for allowance (AFA) | 2003-07-16 |
Letter Sent | 2000-06-13 |
Request for Examination Requirements Determined Compliant | 2000-05-23 |
All Requirements for Examination Determined Compliant | 2000-05-23 |
Request for Examination Received | 2000-05-23 |
Application Published (Open to Public Inspection) | 1999-02-12 |
Inactive: IPC assigned | 1997-11-26 |
Classification Modified | 1997-11-26 |
Inactive: First IPC assigned | 1997-11-26 |
Inactive: Filing certificate - No RFE (English) | 1997-10-20 |
Application Received - Regular National | 1997-10-17 |
Small Entity Declaration Determined Compliant | 1997-08-12 |
There is no abandonment history.
The last payment was received on 2003-07-25
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
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.
Fee Type | Anniversary Year | Due Date | Paid Date |
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Application fee - small | 1997-08-12 | ||
MF (application, 2nd anniv.) - small | 02 | 1999-08-12 | 1999-08-03 |
Request for examination - small | 2000-05-23 | ||
MF (application, 3rd anniv.) - small | 03 | 2000-08-14 | 2000-07-26 |
MF (application, 4th anniv.) - small | 04 | 2001-08-13 | 2001-07-25 |
MF (application, 5th anniv.) - small | 05 | 2002-08-12 | 2002-07-29 |
MF (application, 6th anniv.) - small | 06 | 2003-08-12 | 2003-07-25 |
Final fee - small | 2003-09-19 | ||
MF (patent, 7th anniv.) - small | 2004-08-12 | 2004-08-09 | |
MF (patent, 8th anniv.) - small | 2005-08-12 | 2005-08-02 | |
MF (patent, 9th anniv.) - small | 2006-08-14 | 2006-07-21 | |
MF (patent, 10th anniv.) - small | 2007-08-13 | 2007-07-23 | |
MF (patent, 11th anniv.) - small | 2008-08-12 | 2008-08-08 | |
MF (patent, 12th anniv.) - small | 2009-08-12 | 2009-07-30 | |
MF (patent, 13th anniv.) - small | 2010-08-12 | 2010-07-30 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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YEUN-JUNN LIN |
Past Owners on Record |
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None |