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Expired Canadian patentCanada

High performance all-season tire

CA 1308008 C · Owner: The Goodyear Tire & Rubber Company · Inventors: Brayer, Randall Raymond

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 a tread portion (12) extending circumferentially thereabout. The tread has a plurality of circumferentially extending grooves (36,38,40,42) therein. The axially outermost circumferential grooves (36,42) communicate with one another through two series of crisscrossed curved grooves (44,46), with the grooves of each series inclined in opposite directions across the tread. Drainage grooves (110) extend from the axially outermost circumferential grooves (36,42) to the nearest axial edge (TE1, TE2) of the tread in a substantially axial direction. The tire exhibits good handling at high speeds on both wet and dry pavement while also providing better snow …

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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 September 29, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 29, 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.
FiledMarch 12, 1987
GrantedSeptember 29, 1992
Term endedSeptember 29, 2009
Patent numberCA 1308008 C
Classification (IPC)B60C11/11 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedMarch 12, 1987Patent grantedSep 29, 1992Term endedSep 29, 2009

Sources & verification

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