Compressor
CA 2045332 C · Owner: Mitsubishi Jukogyo Kabushiki Kaisha · Inventors: Hirano, Takahisa; Iio, Takayuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compressor is composed of a housing equipped with a compression mechanism portion and a cover body having a fitting portion, the housing has a suction cavity communicating with a suction chamber and a discharge cavity communicating with a discharge chamber on a peripheral surface thereof, the suction cavity and the discharge cavity are closed up tightly by fitting the cover body to the housing, and the fitting portion is made to communicate with the suction cavity and the discharge cavity, respectively.
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 June 25, 1991 and granted May 20, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 25, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2013.
- 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.