Patent Yard Sign in
Expired Canadian patentCanada

Pneumatic tyres

CA 1283343 C · Owner: Wright, Anthony R. · Inventors: Wright, Anthony R.; Holroyd, Eric

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A pneumatic tyre (10) having a pair of beads (15) each of which comprises a plurality of bundled together wire hoops (40), and a carcass ply (16) extending between the beads 15. The end portions (30) of the carcass ply are anchored in each bead bundle (15) by at least one hooped member (40), (22) or (23) incorporated in the bead configuaration The carcass ply (16) may be reinforced by a continuous cord formed as a series of windings looped around a pair of hooped support elements (22) or (23) which are incorporated into each bead (15) to occupy a position with the bead configuaration.

Read the whole patent

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 April 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 23, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 31, 1986
GrantedApril 23, 1991
Term endedApril 23, 2008
Patent numberCA 1283343 C
Classification (IPC)B60C9/04 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedJuly 31, 1986Patent grantedApril 23, 1991Term endedApril 23, 2008

Sources & verification

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