Expired Canadian patentCanada
Process for the reduction of the sulfur content in a gaseous stream
CA 1197973 A · Owner: Mobil Oil Corporation · Inventors: Kettner, Roland; Liermann, Norbert; Lubcke, Torsten
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A process for extracting sulfur from a gas containing hydrogen sulfide comprises the step of oxidizing the gas over a catalyst containing titanium dioxide as an active ingredient.
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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 December 17, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 17, 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.
FiledNovember 1, 1982
GrantedDecember 17, 1985
Term endedDecember 17, 2002
Patent numberCA 1197973 A
Classification (IPC)C01B17/04 +2 more
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.