Acid gas scrubbing apparatus and method
CA 2379709 A1 · Owner: Miyoshi, Norihisa · Inventors: Naruse, Katsutoshi; Miyoshi, Norihisa; Su, Qingquan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for cleaning an acidic gas which has a gas cleaner (A) wherein a gas to be cleaned containing carbon dioxide and a gas-cleaning liquid containing an alkali agent are contacted to thereby remove an acidic gas in the gas to be cleaned, a regenerator (B) for a cleaning liquid wherein the gascleaning liquid is regenerated and cooled by being contacted with a gas for regeneration (35b) having different components from those of the gas-cleaning liquid (40) and the gas to be cleaned (30) and a circulation means which is , arranged between the gas cleaner (A) and the regenerator (B) for a cleaning liquid and circulates the cleaning liquid. The apparatus is used for practicing a …
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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 19, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 19, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 19, 2022.
- 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.