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Expired Canadian patentCanada

Abs variant nominal hold pressure

CA 2008777 C · Owner: Kade, Alex · Inventors: Walenty, Allen J.; Kade, Alex; Leppek, Kevin G.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract of the Disclosure A brake control system is described that maximizes the braking efficiency of an under-damped actuator, such as a motor-driven linear screw. When an incipient lock condition is detected, the system determines the optimal brake pressure, relieves brake pressure and measures the duration of the pressure release. When the wheel is approaching recovery but, has not yet substantially recovered the system holds, brake pressure constant at a value calculated to represent the amount of pressure remaining at the wheel brake. This calculated hold value is based upon the measured optimal pressure and the measured release duration, and allows the wheel to continue to …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed January 29, 1990 and granted May 31, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 29, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 29, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 29, 1990
GrantedMay 31, 1994
Term endedJanuary 29, 2010
Patent numberCA 2008777 C
Classification (IPC)B60T8/78 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJan 29, 1990Patent grantedMay 31, 1994Term endedJan 29, 2010

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.