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Expired Canadian patentCanada

Pneumatic tire

CA 1324566 C · Owner: The Goodyear Tire & Rubber Company · Inventors: Welter, Thomas Nicolas Hubert

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 radial ply pneumatic tire (10) has carcass plies (13,14,15) reinforced by cables comprising only yarns of aramid filaments, and belt plies (31-35) reinforced by cables comprising at least one yarn of aramid filaments twisted together with at least one yarn of nylon or polyester filaments. In a preferred embodiment which is suitable for use on an aircraft there are both turn-up (13,14) and turn-down (15) carcass plies.

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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 November 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 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.
FiledFebruary 1, 1989
GrantedNovember 23, 1993
Term endedNovember 23, 2010
Patent numberCA 1324566 C
Classification (IPC)B60C9/00 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedFeb 1, 1989Patent grantedNov 23, 1993Term endedNov 23, 2010

Sources & verification

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