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Expired Canadian patentCanada

Electrically heat recoverable article

CA 1250121 A · Owner: N V Raychem Sa · Inventors: Camillus De Blauwe, Francis J.A.M.; Doucet, Jozef G.A.; Pieck, Amandus L.E.

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

Electrically Heat-Recoverable Article A wrap-around heat-recoverable sleeve suitable for providing environmental protection around pipes or cables has self-contained electrical heating means powered through closure members of the sleeve.

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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 21, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 21, 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.
FiledFebruary 29, 1984
GrantedFebruary 21, 1989
Term endedFebruary 21, 2006
Patent numberCA 1250121 A
Classification (IPC)H05B3/06 +2 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedFeb 29, 1984Patent grantedFeb 21, 1989Term endedFeb 21, 2006

Sources & verification

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