Preparation of heteropolysaccharide s-119
CA 1159778 A · Owner: Merck & Co. Inc. · Inventors: Kang, Kenneth S.; Young, Kevin M.; Mirrasoul, Peter J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for producing heteropolysaccharide S-119 by bacterial fermentation of an organism deposited with the American Type Culture Collection under Accession No. ATCC 31643, the heteropolysaccharide S-119 being useful as a thickness agent for aqueous systems.
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 January 3, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 3, 2001.
- 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.