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Expired Canadian patentCanada

Fuel nozzle for gas turbine engines

CA 2557047 C · Owner: General Electric Company · Inventors: Held, Timothy James; Cooper, James Neil

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

A gas turbine engine (10) fuel nozzle (100) includes an axis of symmetry (143) extending therethrough the nozzle body (110) including a first passage (142) extending coaxially therethrough a second passage (152), and a third passage (162) the second passage circumscribing the first passage the third passage formed radially outward of the second passage and a nozzle tip (112) coupled to the nozzle body the nozzle tip including at least one primary discharge opening (170) in flow communication with the first passage at least one secondary discharge opening (172) in flow communication with the second passage and at least one tertiary discharge opening in flow communication with the third …

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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 August 24, 2006 and granted December 31, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 24, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 24, 2006
GrantedDecember 31, 2013
Term endedAugust 24, 2026
Patent numberCA 2557047 C
Classification (IPC)F23R3/28 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedAug 24, 2006Patent grantedDec 31, 2013Term endedAug 24, 2026

Sources & verification

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