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Expired Canadian patentCanada

Cooled turbine vane platform

CA 2549944 C · Owner: Synnott, Remy · Inventors: Synnott, Remy; Trindade, Ricardo

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 vane assembly for a gas turbine engine comprises a plurality of airfoils extending between platforms and a plurality of effusion holes which are defined in at least one of the inner and outer platforms in a region intermediate adjacent airfoils. The effusion holes provide fluid flow communication between a cooling air source and the gas path.

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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 July 19, 2004 and granted September 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 19, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 19, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 19, 2004
GrantedSeptember 18, 2012
Term endedJuly 19, 2024
Patent numberCA 2549944 C
Classification (IPC)F01D9/04 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJuly 19, 2004Patent grantedSep 18, 2012Term endedJuly 19, 2024

Sources & verification

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