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Expired Canadian patentCanada

Connecting rod liner

CA 1103060 A · Owner: Tecumseh Products Company · Inventors: Kaufman, Vernon R.

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 split steel connecting rod liner for internal combustion engines comprising two generally semicircular liner halves formed of steel having inner bearing surfaces which are hardened and including a generally semicircular peripheral reinforcing groove formed in each of the halves. The grooves each comprise a peripheral depression in the inner surface and a corresponding peripheral ridge on the outer surface directly opposite the depression and may be formed by stamping or another suitable metal forming operation. The connecting rod includes a circumferential groove in the crank pin opening within which the liner grooves are disposed so as to prevent lateral movement of the liner.

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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

  • Granted June 16, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 30, 1978
GrantedJune 16, 1981
Term endedJune 16, 1998
Patent numberCA 1103060 A
Classification (IPC)F16C9/04 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedOct 30, 1978Patent grantedJune 16, 1981Term endedJune 16, 1998

Sources & verification

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