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Expired Canadian patentCanada

One-package, stable, moisture curable, alkoxy- terminated organopolysiloxane compositions

CA 1258938 A · Owner: General Electric Company · Inventors: Lockhart, Thomas P.

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

Stable, substantially acid-free one, package, moisture curable alkoxy-terminated organopolysiloxane compositions are provided having a condensation catalyst and a stabilizer or scavenger for materials having chemically combined hydroxy radicals in the form of a molecular sieve.

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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 August 29, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 29, 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.
FiledMarch 29, 1984
GrantedAugust 29, 1989
Term endedAugust 29, 2006
Patent numberCA 1258938 A
Classification (IPC)C08K3/34 +2 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedMarch 29, 1984Patent grantedAug 29, 1989Term endedAug 29, 2006

Sources & verification

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