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Expired Canadian patentCanada

Heat recoverable article

CA 1249918 A · Owner: Raychem Limited · Inventors: Pithouse, Kenneth B.; Harris, Richard J.; Van Dijck, Frans S.J.

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

An article comprises two areas of heat-recoverable woven fabric which are joined together along a line by means of a mechanical joining arrangement, such as stitches staples or a stitched or stapled zip, which penetrates the fabric. The direction of crimp of the area penetrated is substantially perpendicular to the line of the join or the two areas have substantially parallel directions of crimp.

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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 February 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 14, 2006.
  • 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 15, 1984
GrantedFebruary 14, 1989
Term endedFebruary 14, 2006
Patent numberCA 1249918 A
Classification (IPC)D03D15/00 +2 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedAug 15, 1984Patent grantedFeb 14, 1989Term endedFeb 14, 2006

Sources & verification

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