Platelet-aggregation inhibitors
CA 2040947 C · Owner: Monsanto Company · Inventors: Tjoeng, Foe S.; Adams, Steven P.; Garland, Robert B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel peptide mimetic compounds are, provided which have useful activity as inhibitors of platelet aggregation. These compounds have the chemical structure, (see formula I), wherein x = 4 to 8 y = 0 to 4, W = CH2-CH2 or CH=CH, Z = H COOH, CONH2, CH2OH, CO2R, CH2OR or C1-6 alkyl R = C1-6 alkyl, Ar = a nitrogen-containing heterocyclic group other than pyridyl, and, Asp = aspartic acid residue.
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 April 22, 1991 and granted July 10, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 22, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 22, 2013.
- 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.