Anode substrate coated with rare earth oxycompounds
CA 2030788 A1 · Owner: Jorda, Jean-Louis · Inventors: Jorda, Jean-Louis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An anode for electrowinning a metal from a molten salt electrolyte comprises an electroconductive oxycompound substrate which in use carries a surface coating comprising at least one rare earth oxycompound. The substrate comprises a sintered body composed of a nickel-copper-lithium oxide solid solution wherein the solid, solution preferably contains 70-90 mol % nickel oxide 5-29 mol %, copper oxide and 1-10 mol % lithium oxide.
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 March 6, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 2012.
- 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.