A carbon electrode and a method for producing such an electrode
CA 2382685 A1 · Owner: Lundberg, Egil · Inventors: Lundberg, Egil
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention concerns an improved carbon electrode and a method for producing such a carbon electrode. In particular the present invention , relates to anodes for use in connection with electrolytic production of aluminium in accordance with the Hall-Héroult process. The anisotropy in a vibrated carbon anode results in partially significant differences in the physical properties depending on how the samples are oriented in relation to the vibration direction, in particular with regard to electrical resistance. For a tested, typical quality electrode the resistance perpendicular to the , vibration direction is 8.3 % lower than in the vibration direction. If this is utilised …
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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 September 8, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 8, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 8, 2022.
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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.