Process and system for checking the tightness of a device used to store gaseous fuel at high pressure
CA 2548900 C · Owner: Gdf Suez · Inventors: Courrieu, Olivier
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The system for evaluating a seal is applied to high pressure gasoline storage device supplied from a filling station (10) through a fill line (20) connected to the gasoline storage device itself including a piping system (30) and at least one reservoir (60) with at least one check valve placed between the piping system (30) and the reservoir (60). The system includes a pressure measurement device (51) connectable to the fill line (20) or to the piping system (30) a device (50) for processing the values measured by the pressure measurement device (51) and an information display device (70) for displaying the information supplied by the processing device (50). The device (50) for processing …
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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 June 8, 2006 and granted October 22, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 8, 2026.
- 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.