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Expired Canadian patentCanada

Nickel base alloy

CA 1255518 A · Owner: Societe National D'Etude Et De Construction De Moteurs D'Aviation-S.N.E. C.M.A. · Inventors: Boesch, William J.; Maurer, Gernant E.; Theret, Jean M.

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Abstract From the Canadian patent

A gamma prime strengthened nickel-base alloy characterized by a highly desirable combination of stress rupture life, hot corrosion resistance oxidation resist-, ance, phase stability and ductility. The alloy contains from 14 to 18% chromium, from 0.3 to 3% molybdenum from, 4 to 8% tungsten, from 0.01 to 1.0% vanadium from 3.5 to, 5.5% aluminum, from 1 to 4% titanium from 3 to 7% cobalt, from 0.01 to 0.05% carbon and from 0.035 to 0.1% boron.

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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 June 13, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 13, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 22, 1985
GrantedJune 13, 1989
Term endedJune 13, 2006
Patent numberCA 1255518 A
Classification (IPC)C22C19/05

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedNov 22, 1985Patent grantedJune 13, 1989Term endedJune 13, 2006

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