Carbon dioxide removal method employing packed solid calcium hydroxide
CA 1186492 A · Owner: Glass, Roger W. · Inventors: Glass, Roger W.; Cheh, Christopher H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In order to remove carbon dioxide from an off-gas stream and immobilize it in solid stable form the gas is, passed through a packed bed of calcium hydroxide maintained at a temperature in the range 10°C - 50°C the moisture con-, tent of the gas being controlled so as to correspond to a relative humidity from 40% to 100% at the bed temperature.
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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
- Granted May 7, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 7, 2002.
- 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.