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Expired Canadian patentCanada

Method of repairing damages in superalloys

CA 1324242 C · Owner: Miller, Jule A. · Inventors: Lee, Jack W.; Iovene, Michael A.; Miller, Jule A.

CIPO record

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Abstract From the Canadian patent

A method of repairing damages in a superalloy component is disclosed wherein existing brazed joints and protective coatings are not harmed. The method entails the use of a silicon-free metal mixture comprising (i) a low melting alloy having a liquidus below the temperature to be used to deposit the metal mixture (ii) an alloy melting above about 2100°F and (iii), optionally nickel. The resultant repair has a solidus temperature of at least 1950°F, preferably at least 2000°.

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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 November 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 16, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 27, 1989
GrantedNovember 16, 1993
Term endedNovember 16, 2010
Patent numberCA 1324242 C
Classification (IPC)B22F7/00

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJan 27, 1989Patent grantedNov 16, 1993Term endedNov 16, 2010

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