Patent Yard Sign in
Expired Canadian patentCanada

Heat-recoverable fabric article

CA 1284570 C · Owner: Raychem Limited · Inventors: Hutt, Norman; Winfield, Philip Roland

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 composite material comprising a recoverable fabric and a polymeric matrix material may be recovered around a cable splice to protect it. The fabric may have multifilament glass fibres in one direction which may be provided with a continuous coating to prevent moisture that may travel along their length from travelling through the thickness of the composite.

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 June 4, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 4, 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.
FiledOctober 22, 1987
GrantedJune 4, 1991
Term endedJune 4, 2008
Patent numberCA 1284570 C
Classification (IPC)B29C61/04 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedOct 22, 1987Patent grantedJune 4, 1991Term endedJune 4, 2008

Sources & verification

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