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Expired Canadian patentCanada

Method for determining steering position of automotive steering mechanism

CA 2201196 C · Owner: Ford Motor Company Of Canada, Limited · Inventors: Madau, Dinu Petre; Ashrafi, Behrouz

CIPO record

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

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Abstract From the Canadian patent

A method for determining a steering wheel angle of a vehicular steering system includes determining a center position for the steering sensor output every time the vehicle is started. The method employs the use of a yaw sensor for computing an estimate of the actual steering position so that a center position may be back computed to provide immediate and accurate steering position data using the steering sensor signal for controlling an automotive device. The accuracy of the initial estimates may be improved upon by implementing interim and final center algorithms as vehicle operating characteristics permit.

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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 March 27, 1997 and granted December 5, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 27, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 27, 1997
GrantedDecember 5, 2000
Term endedMarch 27, 2017
Patent numberCA 2201196 C
Classification (IPC)B62D15/02 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedMarch 27, 1997Patent grantedDec 5, 2000Term endedMarch 27, 2017

Sources & verification

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