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Expired Canadian patentCanada

Nickel base brazing alloy

CA 1085653 A · Owner: Alloy Metals, Inc. · Inventors: Stern, Marvin J.

CIPO record

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Abstract From the Canadian patent

A nickel base relatively low temperature brazing alloy particu-, larly suitable for brazing, carbon and low alloy steels nickel base alloys, copper, alloys and stainless steels (including thin sections, eg. honeycomb) in dryhydrogen or inert atmospheres at partial-pressure or high vacuums. The brazing alloy is also suitable for brazing in "wet" endothermic and dissociated ammonia atmospheres. The brazing alloy consists essentially of by weight, about 19 to 23, per cent manganese 5 to 8 per cent silicon, 4 to 6 per cent copper 0.6 to 1.8 per, cent boron, 0.01 to 0.2 per cent rare earth preferably mischmetal, additions of, up to 3 per cent tantalum molybdenum, columbium, tungsten, and …

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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 September 16, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 16, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 27, 1977
GrantedSeptember 16, 1980
Term endedSeptember 16, 1997
Patent numberCA 1085653 A
Classification (IPC)C22C30/02 +1 more

Timeline

Timeline From CIPO dates

1978198019821984198619881990199219941996Application filedOct 27, 1977Patent grantedSep 16, 1980Term endedSep 16, 1997

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