Method and apparatus for purifying water
CA 2289060 A1 · Owner: Fantom Technologies Inc. · Inventors: Conrad, Helmut Gerhard; Szylowiec, Ted; Conrad, Wayne Ernest
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for treating a liquid comprising water with a gas comprising ozone comprises introducing the liquid to be treated into a treatment vessel, introducing the gas to treat the liquid into the treatment vessel and treating the liquid in the treatment vessel pressurizing the treatment vessel and, using the pressure in the treatment vessel to dispense the treated liquid from the treatment vessel through a filter. An apparatus for treating the liquid is also disclosed.
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 8, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 8, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2021.
- 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.