Polysaccharides having anticarcinogenic activity and method for producing same
CA 1183530 A · Owner: Takara Shuzo Co. Ltd. · Inventors: Hirata, Yoshiaki; Obayashi, Akira; Shiomi, Tomoko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to polysaccharides having an anticarcinogenic activity and to a process for producing the same. The polysaccharide of the present invention is a high molecular weight .beta.-1,3-glucan composed of the repeated glucopyranose units of the following formula:, wherein "Glu" represents a glucopyranose residue. The polysaccharides of the invention are produced by a process comprising forming a filtered broth from a culture medium or a liquid extract of fruitbodies or mycelium of a strain which is capable of producing the .beta.-1,3-glucan which belongs to the genus Pseudoplectania of the class Discomycetes and recovering the, B-1,3-glucan from the filtered broth or liquid …
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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 March 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 5, 2002.
- 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
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.