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Expired Canadian patentCanada

Self adhesive polymeric composition

CA 1312185 C · Owner: Baier, Robert · Inventors: Kent, Keith; Baier, Robert

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

Abstract of the Disclosure, Polymer compositions and methods of making them are provided. Selected surface layers of the polymers integral with the polymer body, possess pressure sensitive adhesive properties. The polymers are cured with the selected surfaces in contact with a cross-linking inhibition agent which controls the amount of cross-linking of the polymer taking place at the surface. The polymers are useful as, or in conjunction with, prosthetic appliances which are adhered to skin or other substrates.

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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 January 5, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 5, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 5, 1986
GrantedJanuary 5, 1993
Term endedJanuary 5, 2010
Patent numberCA 1312185 C
Classification (IPC)C08G77/06 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedSep 5, 1986Patent grantedJan 5, 1993Term endedJan 5, 2010

Sources & verification

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