Capacitor development
CA 2389727 A1 · Owner: Powercell Corporation · Inventors: Fauteux, Denis G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to super or ultracapacitors. The ultracapacitor includes at least one bipolar electrode plate (12) an , electrolyte (14) and a separator (16). The bipolar electrode plate (12) includes a current collector and an electrode material associated with the current collector. The electrolyte (14) which is positioned between , adjacently oriented bipolar plates includes an organic aprotic solvent and a salt. A stabilizing additive is associated with the electrolyte for stabilizing electrochemical activity between the solvent and at least one of the current collector and the electrode material. In addition the electrolyte , may further include a wetting agent …
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, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 16, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2022.
- 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.