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Expired Canadian patentCanada

Gear shift mechanism for a manual automotive transmission

CA 2015024 C · Owner: Sabel, Gustav · Inventors: Winter-Peter, Wolfgang; Sabel, Gustav; Schnell, Martin

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 gear shift mechanism for a manual transmission includes a shaft axially movable for selecting shift planes and rotatable for engaging the gears defining the shift planes, The shaft is held in a reference shift plane by two helical springs. A finger fixed to the, shaft, carries a cam defining detent surfaces engaged by a spring-loaded catch stud. Shift fork rods support shift forks which have arms formed with grooves extending toward a locking plate that is moved axially along the shaft by the shift finger. The locking plate blocks engagement grooves of the unselected shift forks.

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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 April 20, 1990 and granted August 7, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 20, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 20, 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.
FiledApril 20, 1990
GrantedAugust 7, 2001
Term endedApril 20, 2010
Patent numberCA 2015024 C
Classification (IPC)G05G3/00 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedApril 20, 1990Patent grantedAug 7, 2001Term endedApril 20, 2010

Sources & verification

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