Method and apparatus for conducting fluid into a rock cistern
CA 1294444 C · Owner: Neste Oy · Inventors: Penttinen, Risto; Morsky, Esa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for conducting into a rock cistern, gas, or liquid which is colder than the rock cistern temperature. In this procedure, gas or liquid is fed through a feeder pipe into a gas space of the rock cistern through a feeder pipe construction for conducting gas or liquid into the gas space of the rock cistern. The feeder pipe of the rock cistern is enclosed within a protective tube or housing. A tubular connector extends from the gas space of the rock cistern into an intermediate space formed between the feeder pipe and the protective tube or housing for circulating saturated gas present in the gas space of the rock cistern between the gas space of the rock cistern and the intermediate …
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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
- Granted January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 2009.
- 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.