Capacitor
CA 2307882 A1 · Owner: Nishio, Koji · Inventors: Nohma, Toshiyuki; Fujimoto, Masahisa; Nishio, Koji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A capacitor provided with a pair of electrodes which face oppositely to each other, have specific surface areas of 960 m2/g and made of a conductive , material and a liquid dielectric substance which fills up the space between the paired electrodes and has electrical conductivity of 1x10-7 Scm-1. The capacitor thus constituted has a large energy density.
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 October 9, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 9, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 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.