Inhibitors of integrin .alpha.v.beta.6
CA 2440644 C · Owner: Merck Patent Gesellschaft Mit Beschraenkter Haftung · Inventors: Staehle, Wolfgang; Jonczyk, Alfred; Schadt, Oliver
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel biphenyl derivatives of the general formula (I) in which R1 R1', R1", R2, R2', R3 and n are as defined in Claim 1 their stereoisomers and their , physiologically acceptable salts or solvates are novel integrin inhibitors which preferentially inhibit the .alpha.v.beta.6 integrin receptor. The novel compounds can be used, in particular, as medicaments.
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 February 21, 2002 and granted October 18, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 21, 2024.
- 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.