Stabilizer for polysaccharides
CA 1113861 A · Owner: Behringwerke Aktiengesellschaft · Inventors: Helting, Torsten B.; Guthohrlein, Gerhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This application is directed to a process for the stabilization of menningococcal-polysaccharides in which at least 0.3 mg, for 100 u g of polysaccharide, of at least one compound which can be reversibly dehydrated under lyophilization conditions and forms a hydrate, excluding the compound lactose is added to, an aqueous solution of the menningococcal-polysaccharide and the mixture so obtained is dried.
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 December 8, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 8, 1998.
- 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.