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Expired Canadian patentCanada

Catalysis

CA 1107517 A · Owner: Johnson, Matthey & Co. Limited · Inventors: Pratt, Allin S.; Enga, Bernard E.

CIPO record

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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 novel gas turbine engine is provided herein having as an essential component thereof, a catalytic combustor. The catalytic combustor comprises: (a) a pilot burner adapted to consume not more than 5% of the total fuel consumption of the engine at full power; (b) a combining chamber for combining and mixing effluent hot gases from the pilot burner with additional hot compressed air at a pressure within the range 1 - 20 atmospheres delivered from a compressor turbine the chamber having an inlet to, receive the effluent hot gases and the hot compressed air and an exit to, discharge therefrom the combined hot gases; (c) an injector capable under, full power conditions, of injecting a major …

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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 25, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 3, 1978
GrantedAugust 25, 1981
Term endedAugust 25, 1998
Patent numberCA 1107517 A
Classification (IPC)F02C3/14 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedMarch 3, 1978Patent grantedAug 25, 1981Term endedAug 25, 1998

Sources & verification

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