Patent Yard Sign in
Expired Canadian patentCanada

Ribbon of a cross-linked plastic which is capable of shrinking upon the action of heat

CA 1284569 C · Owner: Kabelmetal Electro Gmbh · Inventors: Voigt, Hermann-Uwe; Patzke, Frank; Marx, Karl-Heinz

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

In a ribbon consisting of a cross-linked plastic which can be shrunk by the action of heat and can be placed in the manner of a collar (2) around an elongated object (4) and after the connecting together of the edges (3a 3b) of the, ribbon can be shrunk onto the object (4) by the action of heat, the edge regions (3a, 3b) of the ribbon consist of noncross-linked plastic and the connecting together (5) of the ribbon edges (3a, 3b) is effected by fusion welding (Fig. 2).

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.
FiledAugust 14, 1987
GrantedJune 4, 1991
Term endedJune 4, 2008
Patent numberCA 1284569 C
Classification (IPC)B29C61/04 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedAug 14, 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.