Method and device for injecting two-phase co2 in a transfer gaseous medium
CA 2490662 C · Owner: Bras, Dominique · Inventors: Bras, Dominique; Buil, Jose
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for injecting two-phase (gas + solid) carbon dioxide into a transfer gaseous medium which consists in transforming by cryogenic expansion liquid CO¿2? into two-phase CO¿2? which is injected into the core of the gaseous medium to be treated in the presence of an inerting gas. The invention also concerns a device for implementing said method.
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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 July 7, 2003 and granted January 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 7, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 7, 2025.
- 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.