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Expired Canadian patentCanada

Latent catalyst curing acrylic adhesives

CA 1187642 A · Owner: American Chemical & Engineering Co. · Inventors: Bachmann, Andrew G.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

An adhesive composition capable of functioning either, aerobically or anaerobically includes an acrylate monomer and a suitable elastomeric filler, together with an aromatic perester and a dibasic acid capable of cyclic tautomerism.

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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 May 21, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 21, 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.
FiledJune 2, 1981
GrantedMay 21, 1985
Term endedMay 21, 2002
Patent numberCA 1187642 A
Classification (IPC)C08F4/00 +2 more

Timeline

Timeline From CIPO dates

1982198519881991199419972000Application filedJune 2, 1981Patent grantedMay 21, 1985Term endedMay 21, 2002

Sources & verification

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