Thermal water treatment
CA 2418019 A1 · Owner: Paul, Darrell D. · Inventors: Millett, Stephen M.; Schelhorn, Jean E.; Haubert, Thomas D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thermal treatment system for supplying thermally conditioned or purified water for human or animal consumption, industrial processes environmental , containment, or removal of foreign species. The water purifier includes a heat exchanger for exchanging heat between outgoing thermally conditioned or purified water and incoming makeup water; a water heater is connected to the heat exchanger so as to receive pre-heated incoming makeup water where the , water heater subsequently heats the incoming preheated makeup water to a setpoint temperature in the case of thermally conditioned water and for purified water also holds the water for a period of time sufficient to inactivate selected …
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 August 3, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 3, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 3, 2023.
- 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.