Sulfated glycosaminoglycanoid derivatives
CA 2076063 C · Owner: Van Boeckel, Constant A. A. · Inventors: Van Boeckel, Constant A. A.; Petitou, Maurice
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a sulfated glycosaminoglycanoid derivative or a pharmaceutically acceptable salt thereof, of which the functional N-sulfate N-acetate, and hydroxy groups, are replaced by alkoxy aryloxy, aralkoxy, O-sulfate, or OALK(OALK)n OX groups (wherein ALK is an aliphatic hydrocarbon group, n is 0-5 and X, is an alkyl or aryl group), provided that at least two functional groups are not replaced by O-sulfate. The compounds have antithrombotic and smooth muscle cell proliferation inhibiting activities.
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 August 13, 1992 and granted December 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 2014.
- 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.