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Expired Canadian patentCanada

Dual clutch reverser actuating mechanism

CA 2254209 C · Owner: Folk, Robert Allen · Inventors: Hamby, Glenn Markham; Folk, Robert Allen

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 dual clutch forward/reverse unit includes a pair of spring engaged clutch units and, a pair of lifter pins, each pin operable to disengage a corresponding one of the clutches. An, actuator mechanism for the forward/reverse unit includes a housing a shaft , rotatably, mounted in the housing and a hollow cylindrical sleeve rotatably mounted on the shaft. The, shaft and the sleeve are operatively coupled to the lifter pins. The shaft has a pair of cam, surfaces formed on an outer periphery thereof. The sleeve has a pair of openings through, which the cam surfaces are exposed. A pair of lifters are pivotally supported in the housing. Each lifter has one side engaging a corresponding one …

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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 December 9, 1998 and granted March 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 9, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 9, 1998
GrantedMarch 18, 2003
Term endedDecember 9, 2018
Patent numberCA 2254209 C
Classification (IPC)F16H61/26 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedDec 9, 1998Patent grantedMarch 18, 2003Term endedDec 9, 2018

Sources & verification

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