Heterobiaryl derivatives, pharmaceutical compositions containing these compounds and processes for preparing them
CA 2080748 A1 · Owner: Austel, Volkhard · Inventors: Mueller, Thomas; Pieper, Helmut; Weisenberger, Johannes
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Heterobiaryl Derivatives, The invention relates to heterobiaryl derivatives of formula, R1NH - X1 - X2 - X3 - Y1 - Y2 - Y3 - Y4 - E (I) (wherein, R1, X1, X2, X3, Y1, Y2, Y3, Y4 and E are as defined in any one of claims 1 to 6) and the tautomers stereoisomers, mixtures and salts thereof more particularly the, physiologically acceptable salts thereof. The new compounds have valuable pharmacological properties in, particular, aggregation-inhibiting effects.
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 October 16, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 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.