Process for the preparation of a ligand-receptor complex
CA 2056357 C · Owner: Monsigny, Michel · Inventors: Kieda, Claudine; Monsigny, Michel; Redziniak, Gerard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to products which are to be bound specifically to the membrane of a keratinocyte by means of a ligand-receptor bond. These products carry at least one ligand consisting of an oside residue selected from .alpha.-L-rhamnose .alpha.-D-galactose and .alpha.-D-galactose-6-phosphate. By virtue of this specificity it is possible, to prepare cosmetic or pharmaceutical compositions having an improved efficacy in particular for example, for regeneration of the epidermis for the treatment of, psoriasis or for renewed hair growth.
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 March 16, 1990 and granted January 8, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 16, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 16, 2012.
- 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.