Alkaline storage battery with a negative zinc electrode
CA 2248191 A1 · Owner: Tassin, Noelle · Inventors: Millot, Alain; Tassin, Noelle; Bronoel, Guy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An alkaline storage battery comprising at least one positive electrode (4) and a negative zinc electrode (13) in contact with an electrolyte via at least one electrolyte-impregnated separator (9i 12), is disclosed. The electrodes are clamped against two respective bipolar screens (5 14) supported by a sealing frame (8, 15). The positive electrode (4) is in contact with a first electrolyte having a predetermined volume and composition via at least one first separator (9i) the negative electrode (13) is in contact with a second electrolyte having a predetermined volume and composition different from those of the first electrolyte via at least one second separator (12) and the first and second …
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 February 5, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 5, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2019.
- 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.