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Expired Canadian patentCanada

Metallic glass alloys for mechanically resonant target surveillance systems

CA 1341071 C · Owner: Ramanan, Varagur Ramachandran Venkata · Inventors: Ramanan, Varagur Ramachandran Venkata

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Abstract From the Canadian patent

A magnetic metallic glass alloy evidencing a low rate of damping of mechanically resonant oscillations is suitable for use in mechanically resonant target surveillance systems. The alloy has a composition described by tree formula F e a N i b M c B d S i e C f where M is one, of molybdenum and chromium "a" - "f" are in atom, percent, "a" ranges from about 39 to about 41 "b", ranges from about 37 to about 39, "c" ranges from 0 to about 3, "d" ranges from about 17 to about 19 and "e", and "f" range from 0 to about 2 with the provisos that, (i) only one of "c" "e", and "f" can be zero, (ii) "e", cannot be zero if "f"' is not zero and (iii) "f" can be, zero only when M is Cr. A ribbon wire or …

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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 August 1, 2000. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 1, 2017.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 11, 1989
GrantedAugust 1, 2000
Term endedAugust 1, 2017
Patent numberCA 1341071 C
Classification (IPC)C22C45/00 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008201120142017Application filedSep 11, 1989Patent grantedAug 1, 2000Term endedAug 1, 2017

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