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(12) Patent: | (11) CA 2244248 |
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(54) English Title: | PROCESS FOR PRODUCING WEAR-RESISTANT BORIDE LAYERS ON METALLIC MATERIAL SURFACES |
(54) French Title: | PROCEDE POUR PRODUIRE DES COUCHES DE BORURE RESISTANTES A L'USURE SUR DES SURFACES DE MATERIAUX METALLIQUES |
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: | GOWLING WLG (CANADA) LLP |
(74) Associate agent: | |
(45) Issued: | 2001-11-20 |
(86) PCT Filing Date: | 1997-01-23 |
(87) Open to Public Inspection: | 1997-07-31 |
Examination requested: | 1998-07-27 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | Yes |
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(86) PCT Filing Number: | PCT/EP1997/000298 |
(87) International Publication Number: | EP1997000298 |
(85) National Entry: | 1998-07-27 |
(30) Application Priority Data: | ||||||
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A process is provided for producing wear-resistant
boride layers on metal material surfaces. The process is
characterized in that a boron halide selected from the group
comprising boron trifluoride, boron tribromide, boron
triiodide and their mixtures is mixed with hydrogen and
optionally argon and/or nitrogen, in order to produce a
reaction gas containing between 0.1 and 30 vol% boron halide.
The resultant mixture is activated by a plasma discharge
whereby boron is transferred from the plasma to the metal
surface.
L'invention concerne un procédé pour produire des couches de borure résistantes à l'usure sur des surfaces de matériaux métalliques. Ce procédé est caractérisé en ce que de l'halogénure de bore choisi dans le groupe comprenant le trifluorure de bore, le tribromure de bore, le triiodure de bore et leurs mélanges est mélangé avec de l'hydrogène et éventuellement de l'argon et/ou de l'azote en vue de produire un gaz de réaction contenant entre 0,1 et 30 % en volume d'halogénure de bore. Le mélange obtenu est activé par une décharge de plasma de telle manière que le bore peut être transféré du plasma à la surface métallique.
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.
Sorry, the representative drawing for patent document number 2244248 was not found.
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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Time Limit for Reversal Expired | 2011-01-24 |
Letter Sent | 2010-01-25 |
Inactive: Office letter | 2007-01-18 |
Inactive: Entity size changed | 2007-01-18 |
Inactive: Corrective payment - s.78.6 Act | 2007-01-10 |
Inactive: Entity size changed | 2003-01-15 |
Inactive: Entity size changed | 2002-02-06 |
Inactive: Late MF processed | 2002-01-22 |
Grant by Issuance | 2001-11-20 |
Inactive: Cover page published | 2001-11-19 |
Pre-grant | 2001-08-07 |
Inactive: Final fee received | 2001-08-07 |
Notice of Allowance is Issued | 2001-04-11 |
Letter Sent | 2001-04-11 |
Notice of Allowance is Issued | 2001-04-11 |
Inactive: Approved for allowance (AFA) | 2001-03-29 |
Letter Sent | 2001-03-05 |
Extension of Time for Taking Action Requirements Determined Compliant | 2001-03-05 |
Amendment Received - Voluntary Amendment | 2001-02-27 |
Extension of Time for Taking Action Request Received | 2001-02-12 |
Letter Sent | 2001-01-23 |
Inactive: S.30(2) Rules - Examiner requisition | 2000-10-11 |
Letter Sent | 2000-02-24 |
Inactive: Single transfer | 2000-02-08 |
Inactive: Entity size changed | 2000-01-12 |
Inactive: Office letter | 1999-07-05 |
Inactive: Single transfer | 1999-05-20 |
Amendment Received - Voluntary Amendment | 1999-01-13 |
Inactive: IPC assigned | 1998-10-16 |
Classification Modified | 1998-10-16 |
Inactive: First IPC assigned | 1998-10-16 |
Inactive: IPC assigned | 1998-10-16 |
Inactive: Acknowledgment of national entry - RFE | 1998-10-05 |
Inactive: Single transfer | 1998-10-05 |
Application Received - PCT | 1998-09-28 |
All Requirements for Examination Determined Compliant | 1998-07-27 |
Request for Examination Requirements Determined Compliant | 1998-07-27 |
Application Published (Open to Public Inspection) | 1997-07-31 |
There is no abandonment history.
The last payment was received on 1999-12-29
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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Request for examination - standard | 1998-07-27 | ||
MF (application, 2nd anniv.) - standard | 02 | 1999-01-25 | 1998-07-27 |
Basic national fee - standard | 1998-07-27 | ||
Registration of a document | 1998-07-27 | ||
Registration of a document | 1999-05-20 | ||
MF (application, 3rd anniv.) - small | 03 | 2000-01-24 | 1999-12-29 |
MF (patent, 4th anniv.) - standard | 2001-01-23 | 2000-12-19 | |
Reversal of deemed expiry | 2001-01-23 | 2000-12-19 | |
Extension of time | 2001-02-12 | ||
Final fee - small | 2001-08-07 | ||
MF (patent, 5th anniv.) - standard | 2002-01-23 | 2002-01-22 | |
MF (patent, 6th anniv.) - small | 2003-01-23 | 2002-12-24 | |
MF (patent, 7th anniv.) - small | 2004-01-23 | 2003-12-12 | |
MF (patent, 8th anniv.) - small | 2005-01-24 | 2004-12-16 | |
MF (patent, 9th anniv.) - small | 2006-01-23 | 2005-12-14 | |
2007-01-10 | |||
MF (patent, 10th anniv.) - standard | 2007-01-23 | 2007-01-12 | |
MF (patent, 11th anniv.) - standard | 2008-01-23 | 2008-01-10 | |
MF (patent, 12th anniv.) - standard | 2009-01-23 | 2009-01-12 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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BOR TEC GMBH |
Past Owners on Record |
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GERHARD TRUTE |
GUNTER LOBIG |
HANS-JORG HUNGER |