Counter-rotating turbine engine and method of assembling same
CA 2524141 C · Owner: General Electric Company · Inventors: Moniz, Thomas O.; Singh, Anant P.; Bond, Donald R.
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) that 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 coupling a first shaft (20) to the first fan assembly and to a first turbine rotor (38) that is configured to rotate in a first rotational direction coupling a second shaft (22) coupled to the second fan assembly and to a second turbine rotor (42) that is configured to rotate in a second rotational direction that is opposite the first …
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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 October 21, 2005 and granted February 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 21, 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.