Natural gas compression heating process
CA 2235536 C · Owner: Yukon Pacific Corporation · Inventors: Whitmore, Ward A.; Metz, Michael C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A natural gas compression heating process for regulating the operating temperature of the natural gas flowing through long pipelines in continuous permafrost and discontinuous permafrost regions. The heat obtained through compression of the natural gas instead of actually heating as performed conventionally, is utilized to raise the temperature of the natural gas to only the desired operating temperature. Consequently, the locations of the natural gas compression heating process and compression stations along the pipeline in a permafrost region are determined by the flowing temperature profile of the pipeline instead of the conventional standard compression cost versus pipeline diameter …
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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 April 22, 1998 and granted July 24, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 22, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 22, 2020.
- 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.