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Expired Canadian patentCanada

Traction control apparatus for automotive vehicle

CA 2105756 C · Owner: Yagi, Yoshifumi · Inventors: Yagi, Yoshifumi

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

A traction control apparatus for carrying out a traction control process of an automotive vehicle in order to control a throttle position of a throttle valve. The apparatus includes: a feedback control part for performing a feedback control process to adjust a throttle position of a sub-throttle valve based on a slip ratio of driving wheels of the vehicle, so as to prevent the vehicle from undergoing excessive slippage at the driving wheels when the vehicle is accelerating; an inhibiting part for setting the throttle position of the throttle valve to a first value by inhibiting the performing of the feedback control process when a traction control process is started; a first control part …

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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 September 8, 1993 and granted January 14, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 8, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 8, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 8, 1993
GrantedJanuary 14, 1997
Term endedSeptember 8, 2013
Patent numberCA 2105756 C
Classification (IPC)B60K28/16

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedSep 8, 1993Patent grantedJan 14, 1997Term endedSep 8, 2013

Sources & verification

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