Method of extracting a physiological active substance from the husks of pine nuts and anti-contagion medicine made of said extract as principal raw material
CA 1324084 C · Owner: Sakagami, Hiroshi · Inventors: Yoshihara, Masazumi; Sakagami, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The method of extracting a physiological active substance in which a granular acid polysaccharide is a principal component is disclosed. The husks of the pine nuts are immersed in an alkali solution to permit an extraction treatment to proceed. The obtained extract is filtered and insoluble substances are separated and then the remaining solution is concentrated and its pH is adjusted. Thus physiological active substance in which a granular acid polysaccharide is a principal component is extracted through lyophilization treatment. The anti-contagion medicine in which an acid polysaccharide obtained by the extraction method is a principle component is provided with an activation function …
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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 November 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 9, 2010.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.