Electric energy converting/storing method and system therefor
CA 2198653 C · Owner: Kuzumoto, Masaki · Inventors: Tanimura, Yasuhiro; Matsuoka, Osamu; Kuzumoto, Masaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electric energy conversion/storage system includes an ozone generating means (12) for producing an ozonized gas from a raw material gas containing oxygen by utilizing electric energy, an ozone adsorbing/desorbing means (15) for adsorbing ozone contained in the ozonized gas and desorbing ozone from the adsorbed state a gas circulation, system for causing the raw material gas and the ozonized gas to flow through the ozone generating means (12) and the ozone absorbing/desorbing means (15) while feeding back to the ozone generating means (12) a residual part of the oxygen gas remaining after adsorption of ozone, a coolant supply means (16) for cooling the ozone adsorbing/desorbing means (15) …
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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 27, 1997 and granted August 29, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 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.