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Expired Canadian patentCanada

Fast-curing foamable composition based on ethylene terpolymers

CA 1197049 A · Owner: Bata Limited · Inventors: Rys-Sikora, John

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

TITLE, Fast-Curing Foamable Composition Based on Ethylene Terpolymers, ABSTRACT OF THE INVENTION A fast molding foamable composition, comprising a terpolymer of ethylene 10 to 40 percent, by weight of a softening monomer and 1. 0 to 20 percent by weight carbon monoxide, a free radical crosslinking agent and a chemical blowing agent.

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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 November 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 19, 2002.
  • 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 16, 1982
GrantedNovember 19, 1985
Term endedNovember 19, 2002
Patent numberCA 1197049 A
Classification (IPC)C08L23/04 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedSep 16, 1982Patent grantedNov 19, 1985Term endedNov 19, 2002

Sources & verification

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