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Expired Canadian patentCanada

Infrared suppressor system

CA 1137765 A · Owner: General Electric Company · Inventors: Steyer, William; Duffy, Robert J.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

An infrared suppressor system for gas turbine engine is provided for suppressing infrared and with the hot exhaust gases exhausted from the engine.

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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 December 21, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 21, 1999.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 22, 1979
GrantedDecember 21, 1982
Term endedDecember 21, 1999
Patent numberCA 1137765 A
Classification (IPC)F02K1/04

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedNov 22, 1979Patent grantedDec 21, 1982Term endedDec 21, 1999

Sources & verification

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