Patent Yard Sign in
Expired Canadian patentCanada

Methods and apparatus for operating gas turbine engines

CA 2531741 C · Owner: Wollenweber, Gary Craig · Inventors: Wollenweber, Gary Craig; Turco, John B.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A gas turbine engine assembly (10) including at least one propelling gas turbine engine (11) including a fan assembly (14) and a core engine assembly (13) downstream from the fan assembly. The core engine includes a booster compressor (102) a high pressure compressor (22), a high pressure turbine assembly (24) a booster turbine assembly (104) and a low pressure turbine assembly (16) coupled together in serial-flow arrangement such that the booster turbine is rotatably coupled to the booster fan; and an auxiliary engine (12) used for generating power. The auxiliary engine includes at least one turbine (62) and an inlet the inlet coupled upstream from the booster turbine and in flow …

Read the whole patent

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 December 29, 2005 and granted April 15, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 29, 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.
FiledDecember 29, 2005
GrantedApril 15, 2014
Term endedDecember 29, 2025
Patent numberCA 2531741 C
Classification (IPC)F02C6/00 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedDec 29, 2005Patent grantedApril 15, 2014Term endedDec 29, 2025

Sources & verification

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