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Expired Canadian patentCanada

Cast thermally stable nickel alloy

CA 1053487 A · Owner: Cabot Corporation · Inventors: Acuncius, Dennis S.; Matthews, Steven J.

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Abstract From the Canadian patent

A nickel-base cast alloy is provided having high retention of ductility and high thermal stability on aging coupled with low thermal expansion and good oxidation resistance. Such alloy has a composition in weight percent within the range molybdenum 13.7% to 15.5%, chromium 14.7% to 16.5% carbon 0.02%, max. boron up to 0.02%, manganese 0.3% to 1.0% silicon 0.2%, to 0.75%, cobalt 2.0% max. iron 3.0% max. tungsten 1.0% max. aluminum 0.1% to O. 5% and the balance nickel said alloy having, a Nv number between 2.23 and 2.31. The new alloy is especially suited for use as castings of jet engine components requiring the above-mentioned characteristics at higher operating temperature levels than now …

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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 May 1, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 1, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedMay 1, 1979
Term endedMay 1, 1996
Patent numberCA 1053487 A
Classification (IPC)C22C19/05

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedMay 1, 1979Term endedMay 1, 1996

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