Ozone storing method and ozone storage system
CA 2198521 C · Owner: Tanimura, Yasuhiro · Inventors: Nakayama, Shigeki; Kuzumoto, Masaki; Hirotsuji, Junji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ozone storage system which allows energy required for producing and storing ozone to be reduced and which supplies ozone as stored to an ozone consumer stably in continuation. The system includes an ozone generator (1) for generating an ozonized oxygen gas from an oxygen containing gas by using electric energy, an adsorption/desorption tower (4) including an adsorbing means for adsorbing ozone from the ozonized oxygen gas and desorbing means for desorbing ozone from the adsorbent, a circulation pipe (L1) for feeding back the oxygen containing gas to the ozone generator (1) after adsorption of ozone in the adsorption/desorption tower (4) an ozone discharging means (11) for discharging …
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 February 26, 1997 and granted July 11, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 26, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 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.