High power density battery for peak power
CA 2020402 C · Owner: De Nora Permelec S.P.A. · Inventors: Bianchi, Giuseppe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Low capacity and high power density electric battery which electrolyzes water in the charging phase to produce hydrogen and oxygen used as reactants in the discharging phase, which battery comprises an ion-exchange membrane, separating two compartments said, compartments containing gas evolving positive and negative electrodes respectively far the evolution of oxygen and hydrogen during the charging phase and for recombination of the same to produce water during the discharging phase, as well as means for the circulation of said water in a spray form.
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 July 4, 1990 and granted December 25, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 4, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 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.