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Expired Canadian patentCanada

Method of treating a surface to protect the same

CA 2931668 C · Owner: Chevron Phillips Chemical Company Lp · Inventors: Scanlon, Geoffrey E.; Knorr, Daniel B.; Hise, Robert L.

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

A method of treating a substrate by applying a layer of at least one metal to the substrate to form an applied metal layer on the substrate and followed by curing of the applied metal layer at sub-atmospheric pressure to form a metal protective layer. A method of treating a substrate by applying a layer of at least one metal to a substrate of an unassembled component of a reactor system to form an applied metal layer on the substrate of the unassembled component and curing the applied metal layer on the substrate of the unassembled component to form a metal protective layer. A method of treating a substrate by applying a layer of at least one metal to the substrate to form an applied metal …

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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

  • Filed May 31, 2006 and granted May 1, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 31, 2006
GrantedMay 1, 2018
Term endedMay 31, 2026
Patent numberCA 2931668 C
Classification (IPC)C23C24/08 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMay 31, 2006Patent grantedMay 1, 2018Term endedMay 31, 2026

Sources & verification

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