Particle size and thickness of bed of a psa unit
CA 2246477 A1 · Owner: Monfort, Christophe · Inventors: Rouge, Dominique; Monfort, Christophe; Moreau, Serge
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A PSA process for separation of a gas stream containing essentially oxygen and nitrogen such as air, by preferential adsorption of the nitrogen on at least one bed of thickness (e) of adsorbent media of medium particle size (d) introduced in at least one separation zone in which an absorption bed of thickness (e) such as: e and being expressed in mm is chosen.
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 28, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 28, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 28, 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.