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Expired Canadian patentCanada

Titanium and zirconium production by arc heater

CA 1065415 A · Owner: Westinghouse Electric Corporation · Inventors: Fey, Maurice G.; Wolf, Charles B.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A high temperature arc heater and reaction chamber for liquid state material processing and collection characterized by at least one arc heater connected tangentially to a circular reaction chamber where separation of liquid and gases occurs centrifugally and in which chamber an inner wall operates at relatively high temperature to limit the thickness of material buildup such as titanium or zirconium which solidifies on the wall. -1-

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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 October 30, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 30, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedOctober 30, 1979
Term endedOctober 30, 1996
Patent numberCA 1065415 A
Classification (IPC)H05B7/18 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedOct 30, 1979Term endedOct 30, 1996

Sources & verification

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