Solvent absorption and recovery system
CA 1258566 A · Owner: Sandoz Ltd. · Inventors: Ehrler, Arthur J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Materials, such as pollutants solvents and the like, in, a fluid stream such as a gaseous stream or liquid, stream are removed by contacting the fluid stream with a liquid selective solvent or absorbent for the material or pollutant to be removed. In the case where the fluid stream being treated with the liquid selective solvent is a liquid stream, the liquid selective solvent employed is substantially immiscible with respect to the liquid stream being treated. After contact with the fluid stream being treated the liquid selective solvent now having the material or pollutant to be removed dissolved therein, is removed from and heated preferably under a reduced pressure relative to the …
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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 August 22, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 22, 2006.
- 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.