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Expired Canadian patentCanada

Reactive spray forming process

CA 2010887 C · Owner: Tsantrizos, Peter George · Inventors: Henshaw, Bruce; Boulos, Maher; Chen, Kaiyi

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

A reactive spray forming process comprises generating a molten spray of metal, and reacting such molten spray of metal in flight with a surrounding hot metal halide gas to form a desirable alloy, intermetallic or composite product. The molten spray of metal may be directed towards a cooled substrate and the alloy, intermetallic or composite product collected and solidified on the 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

  • Filed February 26, 1990 and granted July 2, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 26, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 26, 1990
GrantedJuly 2, 1996
Term endedFebruary 26, 2010
Patent numberCA 2010887 C
Classification (IPC)B22F9/26

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedFeb 26, 1990Patent grantedJuly 2, 1996Term endedFeb 26, 2010

Sources & verification

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