Process for the separation of sterols
CA 1065303 A · Owner: Oy.Kaukas Ab. · Inventors: Johansson, Ake A.; Suokas, Elias U.; Kivikari, Riitta H.K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for the separation of sterols. Abstract of the Disclosure Process for the separation of sterols or mixtures of sterols from mixtures of unsaponifiables obtained from crude soap skimmings, soap of vegetable oil animal fat, or the like, by dissolving the mixture of unsaponifiables extracting the polar components including the sterols into a hydrophilic solvent mixture, separating the hydrophilic phase and crystallising the sterols from said phase by concentrating and cooling.
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
- Granted October 30, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 30, 1996.
- 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.