Electrochemical cell having multiple anode compartments
CA 2318532 A1 · Owner: Eveready Battery Company, Inc. · Inventors: Urry, Lewis F.; Mick, Alvin R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrochemical cell is provided having a first electrode such as a , cathode, and a plurality of second electrodes such as anodes, provided in a , cell container. A plurality of cavities are formed within the cathode. A separator and anode are disposed within each of said cavities and a current , collector electrically connects the anodes together. According to one embodiment, a plurality of cylindrical anodes are provided. According to a second embodiment, a plurality of semi-cylindrical anodes are disclosed.
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 November 16, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 16, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2020.
- 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.