Spectacular break-through in gas, isotope and liquid separations and a revolutionary advance in and a master key for membrane technology and science
CA 2000018 A1 · Owner: Khodai Joopary, Arastoo · Inventors: Khodai Joopary, Arastoo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process is described for the permseparation of gases iso-, topes, and liquids by permselective membranes which comprise the use of membranes of solid materials with pores having a size shape, and length resulting in a microcapillary action which causes microphase separation on the molecular level of one component of the fluid, i.e. the component with the highest throughout and the, transport of that component across the membrane by flowing through the pores resulting in a complete or substantially complete separation; said permseparation depends on the difference between the bulk properties of the components. The observations leading to the present invention such as large separation …
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 October 2, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 2, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 2, 2011.
- 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.