A method and device at an ozone generator unit
CA 2481223 A1 · Owner: Vatrella Ab · Inventors: Arlemark, Jan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a closed ozone generator unit (2) oxygen gas is transformed into ozone gas by means of alternating current, the oxygen gas being substantially pressurized before entry into the unit (2). The unit is exposed to an external pressure substantially equal to or higher than the pressure of the oxygen gas.
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 April 4, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 4, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 4, 2025.
- 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.