Water purification
CA 2364247 A1 · Owner: Wachinski, Anthony M. · Inventors: Wachinski, Anthony M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Systems and methods for water purification are disclosed. The system includes an inlet for untreated water, an outlet for purified water a filter assembly , having a filter medium interposed between the inlet and the outlet and a , chlorine dioxide source. Water is purified by contacting chlorine dioxide with water and passing the water through a filter medium. The systems and methods are particularly applicable for the purification of industrial process water and municipal surface water and ground water for potable use.
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 24, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 24, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2022.
- 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.