Vaporizing liquid sulphur dioxide by microwave radiation
CA 1234745 A · Owner: C-I-L Inc. · Inventors: Masse, Gary M.J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Vaporizing Liquid Sulphur Dioxide by Microwave Radiation, Process and apparatus for the generation of sulphur dioxide vapour from contaminated liquid sulphur dioxide. The process allows of utilization of contaminated liquid sulphur dioxide and comprises subjecting liquid sulphur dioxide feed to microwave energy for a sufficient period of time to produce sulphur dioxide vapour collecting said, vapour and removing resultant contaminated liquid sulphur dioxide, if any.
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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 April 5, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 5, 2005.
- 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.