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Expired Canadian patentCanada

Adhesive primer composition

CA 1182736 A · Owner: Toray Silicone Company, Ltd. · Inventors: Yasuda, Sadami; Hamada, Mitsuo

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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 A mixture of an organosilicon compound having at least one alkoxy or alkoxyalkoxy radical per molecule vinyltris-, (tertiary-butylperoxy)silane and organic solvent is an, adhesive primer composition useful for bonding thermosetting silicone rubber to a substrate, especially for bonding fluorosilicone rubber to a substrate, The adhesive primer composition can be used in a method of bonding thermosetting silicone rubber to a substrate.

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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 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 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.
FiledOctober 8, 1981
GrantedFebruary 19, 1985
Term endedFebruary 19, 2002
Patent numberCA 1182736 A
Classification (IPC)B05D1/38 +2 more

Timeline

Timeline From CIPO dates

1982198519881991199419972000Application filedOct 8, 1981Patent grantedFeb 19, 1985Term endedFeb 19, 2002

Sources & verification

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