Energy-saving type zinc electrolysis method
CA 1289509 C · Owner: Yoon, Kyung Suk · Inventors: Yoon, Kyung Suk; Cho, Byung-Won
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An energy saving type zinc electrolysis process wherein there is a cathodic chamber and an anodic chamber in an electrolyzer and a cathodic chamber solution is prepared by adding a small quantity of iodine ions or iodine to sulfuric acid-zinc solution. An anodic chamber solution is prepared by the addition of sulfur dioxide gas and a small quantity of oxidizing catalyst to sulfuric acid and then both solutions are electrolyzed.
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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 September 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2008.
- 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.