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Canadian application, no grantCanada

Ductility nial intermetallic compounds microalloyed with iron

CA 2061987 A1 · Owner: Darolia, Ramgopal · Inventors: Darolia, Ramgopal; Lahrman, David Frank; Field, Robert Douglas

CIPO record

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Abstract From the Canadian patent

13DV-10659, IMPROVED DUCTILITY NiAl INTERMETALLIC COMPOUNDS MICROALLOYED WITH IRON, ABSTRACT, A beta phase nickel aluminide microalloyed with iron having improved ductility. Nickel aluminide intermetallics alloyed with no more than about 0.5 atomic percent iron have significantly improved room temperature ductility over conventional unalloyed beta phase nickel aluminides or beta phase nickel aluminides alloyed with higher percentages of iron.

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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 27, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 27, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2014.
  • 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 27, 1992
GrantedNo grant recorded
Term endedFebruary 27, 2012
Patent numberCA 2061987 A1
Classification (IPC)C22C19/05 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedFeb 27, 1992Term endedFeb 27, 2012

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