High molecular weight homopolysaccharides, their extracellular preparation and their use, and corresponding fungal strains
CA 1329159 C · Owner: Rau, Udo · Inventors: Rapp, Peter; Rau, Udo; Lindoerfer, Walter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure: Nonionic biopolymers in the form of homopolysaccharides having a high specific viscosity are prepared by an extracellular process in which microorganisms in the form of certain fungal strains are cultivated in a nutrient medium with aeration and agitation at about 15-40°C, if necessary the culture suspensions are then heated, the culture solution is then separated from the cell mass, and the resulting homopolysaccharide is isolated therefrom with virtually only glucose as a basic monomer component.
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 May 3, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 2011.
- 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.