Process for the electrolysis of a molten charge using inconsumable anodes
CA 1058554 A · Owner: Swiss Aluminium Ltd. · Inventors: Alder, Hanspeter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the electrolysis of a molten charge in particular of aluminum oxide, in a cell which is fitted with one or more anodes whose working surfaces are of ceramic oxide material. Parts of the anode surfaces which are not protected by sufficiently high current density are subjected, to a stream of oxidising gas.
Read the whole patent
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 July 17, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 17, 1996.
- 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.