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Expired Canadian patentCanada

Motor actuated anti-lock brake control system

CA 1290372 C · Owner: Lin, William C.W. · Inventors: Lin, William C.W.

CIPO record

Overview

Drawings and full text

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 wheel lock control system is described for a wheel braking system that includes a motor driven actuator for applying controlled hydraulic pressure to the wheel brake. The component of the motor current representing the brake pressure is determined and the motor current corresponding to the brake pressure producing the maximum possible braking effort during each brake pressure application is identified and reapplied to the motor after an incipient wheel lockup condition is sensed.

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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

  • Granted October 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 8, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 10, 1987
GrantedOctober 8, 1991
Term endedOctober 8, 2008
Patent numberCA 1290372 C
Classification (IPC)B60T8/60 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedAug 10, 1987Patent grantedOct 8, 1991Term endedOct 8, 2008

Sources & verification

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