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Expired Canadian patentCanada

Deflectors for controlling entry of fluid leakage into the working fluid flowpath of a gas turbine engine

CA 2548894 C · Owner: Marini, Remo · Inventors: Girgis, Sami; Marini, Remo

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 deflector arrangement is provided for improving turbine efficiency by imparting added tangential velocity to a leakage flow entering the working fluid flowpath of a gas turbine 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

  • Filed May 30, 2006 and granted April 9, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 30, 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.
FiledMay 30, 2006
GrantedApril 9, 2013
Term endedMay 30, 2026
Patent numberCA 2548894 C
Classification (IPC)F01D5/02 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMay 30, 2006Patent grantedApril 9, 2013Term endedMay 30, 2026

Sources & verification

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