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Expired Canadian patentCanada

Iron-base alloy materials having excellent workability

CA 1231559 A · Owner: Masumoto, Tsuyoshi · Inventors: Tomioka, Hiroyuki; Inoue, Akihisa; Masumoto, Tsuyoshi

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Abstract From the Canadian patent

Three basic types of iron-base alloys are disclosed as follows. An iron-base alloy having excellent workability comprising 2 to 60 atomic % of at least one of Ni and Mn, 7.5 to 60 atomic % of Cr 0.5 to 12, atomic % of A?, 0.5 to 10 atomic % of at least one of C B and P and the balance consisting substantially of Fe. An iron-base alloy having excellent workability comprising 2 to 60 atomic % of at least one of Ni and Mn 7.5, to 60 atomic % of Cr, 1 to 15 atomic % of Si 0.5 to 10, atomic % of at least one of C B and P and the balance, consisting substantially of Fe. Also provided is an iron-base alloy having excellent workability comprising 2 to 60 atomic % of at least one of Ni and Mn 7.5 …

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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 January 19, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 19, 2005.
  • 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 24, 1984
GrantedJanuary 19, 1988
Term endedJanuary 19, 2005
Patent numberCA 1231559 A
Classification (IPC)C22C38/06 +1 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedFeb 24, 1984Patent grantedJan 19, 1988Term endedJan 19, 2005

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