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Expired Canadian patentCanada

Methods and apparatus for cooling gas turbine engine components

CA 2525283 C · Owner: General Electric Company · Inventors: Lee, Ching-Pang; Bunker, Ronald Scott; Maclin, Harvey Michael

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 gas turbine engine component (40) includes a substrate wall (50) including a first surface (52) and an opposite second surface (54) and a plurality of pores (56) extending through the wall. The component also includes a thermal barrier coating (TBC) (74) extending over the wall first surface wherein the TBC substantially seals the pores at the first surface. The component also includes a plurality of film cooling holes (58) extending through the wall and the TBC wherein the plurality of film cooling holes and the plurality of pores extend substantially perpendicularly through the wall and the TBC.

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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 November 3, 2005 and granted March 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 3, 2025.
  • 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.
FiledNovember 3, 2005
GrantedMarch 12, 2013
Term endedNovember 3, 2025
Patent numberCA 2525283 C
Classification (IPC)F01D25/12 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedNov 3, 2005Patent grantedMarch 12, 2013Term endedNov 3, 2025

Sources & verification

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