Entropy pump for scientific and commercial uses
CA 2310148 A1 · Owner: Mayhew, Kent W. · Inventors: Mayhew, Kent W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is an apparatus and a methology for the removal of dissolved and/or immersed gases from a fluid. More, specically, the present invention has scientific and commercial applications for the removal of dissolved and/or immersed gases from a fluid. The present invention removes the gases by isolating the fluid in a chamber and then forcing the said chamber to expand. The process of forced expansion of the chamber allows the gas molecules dissolved in the fluid to attain enough entropy (generally, in the form of volume) to change to a gaseous state. The present invention will extract dissolved gases from a fluid in an aparatus that has no dead volumes, thus if proper …
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 June 8, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 8, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 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.