A method of producing aluminium and other metals
CA 2118927 A1 · Owner: Novikov, Aleksandr N. · Inventors: Lozovoi, Jury D.; Kulkov, Viktor N.; Cheremisin, Nikolai A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of producing alumunium and other metals by electrolysis with the liquid-metallic cathode and the horizontal anode is presented. To raise the efficiency and ecological acceptability of the process, the level of the electrolyte is kept equal to one or two-fold value of the interpolar distance. The feed of raw materials into the electrolyte is performed by means of the vertical movements of the anode.
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
- Filed June 18, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 18, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2015.
- 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.