Neoglycoproteins, the preparation and use thereof
CA 2002218 C · Owner: Wiegand, Herbert · Inventors: Wiegand, Herbert; Bosslet, Klaus; Bosslet, Silke
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The synthesis and use of neoglycoproteins is described. Monosialolactose and disialolactose are isolated from bovine colostrum and coupled by means of a coupling reagent to human serum albumin (HSA) as carrier protein. These neoglycoproteins are suitable as vaccines and moreover, as ligands for the localization and therapy of lectin-expressing tumor tissues.
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
- Filed November 3, 1989 and granted August 8, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 3, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 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.