Fast response membrane generator using heat accumulation
CA 2104809 A1 · Owner: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Proced Es Georges Claude · Inventors: Barbe, Christian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A membrane gas generator which entails:, a) feed stream compressing means having feed stream input means;, b) heat source means downstream of the feed stream comprising means, and in fluid connection therewith; c) heat accumulator means downstream of the heat source means, and in fluid connection therewith; and d) at least one membrane with a permeate side and a non-permeate side downstream of the heat accumulator means.
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 August 25, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 25, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 25, 2015.
- 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.