Counter-rotating turbine engine and method of assembling same
CA 2516752 C · Owner: Moniz, Thomas O. · Inventors: Moniz, Thomas O.; Seda, Jorge F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for assembling a gas turbine engine (10) includes providing a first fan assembly (12) configured to rotate in a first rotational direction rotatably coupling a second fan assembly (14) to the first fan assembly wherein the second fan assembly is configured to rotate in a second rotational direction that is opposite the first rotational direction and coupling a lubrication system (150) to the gas turbine engine such that a lubrication fluid is channeled through at least a portion of the second fan assembly.
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 August 18, 2005 and granted January 7, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 18, 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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.