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Expired Canadian patentCanada

Gas turbine engine augmentor

CA 1281554 C · Owner: Clements, Thomas Rush · Inventors: Blevins, James Dale; Clements, Thomas Rush

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

Gas Turbine Engine Augmentor The pilot section of a flameholder of an augmentor for a gas turbine engine is modified to improve the ignition and stability characteristics by judiciously locating aperture(s) or slot(s) in the pilot section wherein their orientation is critical so as to create a vortical flow field.

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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 March 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 2008.
  • 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, 1986
GrantedMarch 19, 1991
Term endedMarch 19, 2008
Patent numberCA 1281554 C
Classification (IPC)F02C1/00 +1 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedOct 27, 1986Patent grantedMarch 19, 1991Term endedMarch 19, 2008

Sources & verification

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