Polysaccharide s-60 and bacterial fermentation process for its preparation
CA 1160582 A · Owner: Merck & Co. Inc. · Inventors: Veeder, George T.; Kang, Kenneth S.; Colegrove, George T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
OF THE INVENTION:, A novel polysaccharide S-60 is disclosed composed of principally carbohydrate, 10-15% protein and 3-4.5% acetyl groups as the O-glycosidically linked ester. The carbohydrate portion contains ~12% uronic acid (based on wt. gum) and the neutral sugars rhamnose and glucose, the latter having an approximate molar ratio of 1.5 to 1. This polysaccharide is produced by an unnamed Pseudomonas species , ATCC 31461, in a suitable fermentation medium. Deacetylated polysaccharide S-60 is also disclosed. It has valuable properties in both the clarified and non-clarified form and is useful as an agar substitute or as a shapeable room deodorant.
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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 January 17, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 17, 2001.
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Timeline
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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.