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Expired Canadian patentCanada

Axle shaft retention structure

CA 2023078 C · Owner: Klages, Corwin Lee · Inventors: Klages, Corwin Lee

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 An axle shaft retention structure includes a retainer ring trapped between a shoulder on an axle shaft and the inner end of a hollow sleeve which is a part of a universal joint. The hollow sleeve is attached to the axle shaft by a snap ring. The retaining ring is provided with spherical slots which receive the spherical inner ends of retaining screws extending through the axle housing. The retaining screws nest into the spherical slots in the retaining ring inward against an internal shoulder on an axle housing. The shoulder on the axle housing and retaining screws limit both axial and rotary movement of the retainer ring. Thus, end play which is, detrimental to …

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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 August 10, 1990 and granted May 17, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 10, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 10, 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.
FiledAugust 10, 1990
GrantedMay 17, 1994
Term endedAugust 10, 2010
Patent numberCA 2023078 C
Classification (IPC)F16D3/84

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedAug 10, 1990Patent grantedMay 17, 1994Term endedAug 10, 2010

Sources & verification

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