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Expired Canadian patentCanada

Ferrous substrate with rubber adherent metal coating and method of making the same

CA 1250198 A · Owner: N.V. Bekaert S.A. · Inventors: Dambre, Paul

CIPO record

Overview

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

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Abstract From the Canadian patent

A rubber adherable ferrous substrate for use in reinforcing vulcanizable elastomeric products includes a cold worked steel wire having a brass alloy coating of specified compact structure on its surface. There is provided also a process for covering a steel wire substrate with a compact alloy coating in particular a thin brass, diffusion coating having a specified permeability.

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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.
FiledOctober 22, 1985
GrantedFebruary 21, 1989
Term endedFebruary 21, 2006
Patent numberCA 1250198 A
Classification (IPC)B32B15/20 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedOct 22, 1985Patent 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.