Inert anode for producing aluminium by igneous electrolyse and method for producing said anode
CA 2542117 C · Owner: Baco-Carles, Valerie · Inventors: Laurent, Veronique; Rousset, Abel; Gabriel, Armand
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for producing a solid part for forming an entire anode or the part thereof for producing aluminium by igneous electrolyse and comprising a cermet made of at least one type of metal oxide such as a spinel mixed oxide containing a R metal in the form of cations in the chemical structure thereof. Said R metal is entirely or partly reducible by a reducing operation during a production process in such a way that the entire metallic phase or the part thereof is formed. The inventive method makes it possible to obtain a cermet whose metallic phase comprises a homogenous distribution of fine metallic particles.
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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
- Filed October 5, 2004 and granted March 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 5, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 2026.
- 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
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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.