Reversible gas turbine gearbox
CA 2562290 C · Owner: Pratt & Whitney Canada Corp. · Inventors: Mitrovic, Lazar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gearbox (30, 130) for rotating a propeller in a selected one of a first or second direction provided. The second direction being opposite with respect to the first direction. The gearbox includes common gas turbine gear components selected irrespective of the selected propeller direction and first and , second configurations of gears idlers (76), and pinions (44, 74) arranged in accordance with the propeller~s selected direction.
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 April 5, 2005 and granted October 1, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 5, 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.