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Expired Canadian patentCanada

Pneumatic tires

CA 1296979 C · Owner: Kolowski, Michael Alois · Inventors: Ford, Thomas Latimer; Smithkey, John Clarence; Kolowski, Michael Alois

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

The turn-up portion (217) of the carcass ply in the bead portion (219) of a pneumatic tire is interposed between the bead core (213) and a clamping member (231). The clamping member (231) comprises a heat shrinkable material that secures the turn-up in a desired location.

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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 March 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 16, 1987
GrantedMarch 10, 1992
Term endedMarch 10, 2009
Patent numberCA 1296979 C
Classification (IPC)B60C15/05 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedJune 16, 1987Patent grantedMarch 10, 1992Term endedMarch 10, 2009

Sources & verification

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