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Expired Canadian patentCanada

Refractory metal composite coated article

CA 1306146 C · Owner: Priceman, Seymour · Inventors: Priceman, Seymour

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, The coated article includes a refractory metal substrate having an oxidation resistant intermetallic layer formed in situ thereon; e.g. a fused refractory metal silicide layer, and a ceramic layer applied on and adhering to the intermetallic layer to provide enhanced high temperature properties and improved resistance to premature catastrophic failure in high temperature oxidizing environments where dissimilar materials are present that may destructively react with the intermetallic layer.

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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 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 11, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 15, 1988
GrantedAugust 11, 1992
Term endedAugust 11, 2009
Patent numberCA 1306146 C
Classification (IPC)B32B15/04 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedAug 15, 1988Patent grantedAug 11, 1992Term endedAug 11, 2009

Sources & verification

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