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Expired Canadian patentCanada

Railway truck side bearing

CA 1317620 C · Owner: A. Stucki Company · Inventors: Wright, James F.

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 side bearing for a railway car having a pair of spaced elongated resilient elastomeric elements which bias the elements of the side bearing in operative position and which elements preferably have uppermost separate members which are effective for generating increased frictional dissipation of energy over the frictional energy dissipation available with an elastomeric element only and for providing in, cooperation with the elastomeric elements improved bearing performance through, the deformation of the elastomeric elements under initial loading and under operating loads,

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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 May 11, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 11, 2010.
  • 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 23, 1988
GrantedMay 11, 1993
Term endedMay 11, 2010
Patent numberCA 1317620 C
Classification (IPC)F16C17/04 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedAug 23, 1988Patent grantedMay 11, 1993Term endedMay 11, 2010

Sources & verification

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