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Expired Canadian patentCanada

Iron-rich metallic glasses having high saturation induction and superior soft ferromagnetic properties at high magnetization rates

CA 2059267 C · Owner: Allied-Signal Inc. · Inventors: Ramanan, V. R. V.; Smith, Carl H.

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Abstract From the Canadian patent

A magnetic metallic glass alloy exhibits in combination; high saturation , induction and low magnetic anisotropy energy. The alloy has a composition described by the formula Fe a Co b B c Si d C e where "a" - "e" are in atom percent, "a" ranges from about 72 to about 84, "b" ranges from about 2 to about 8 "c" ranges from , about 11 to about 16 "d" ranges from about 1 to, about 4, and "e" ranges from 0 to about 4 with up to about 1 atom percent of , Mn being optionally present. Such an alloy is especially suited for use in large magnetic cores associated with pulse power applications requiring high magnetization rates. Examples of such applications include high power pulse sources for …

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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 June 20, 1990 and granted June 6, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 20, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 20, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 20, 1990
GrantedJune 6, 2000
Term endedJune 20, 2010
Patent numberCA 2059267 C
Classification (IPC)H01F1/15 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJune 20, 1990Patent grantedJune 6, 2000Term endedJune 20, 2010

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