Bicyclic heterocyclic compounds, pharmaceutical preparations containing these compounds and processes for their preparation
CA 2128464 A1 · Owner: Dr. Karl Thomae Gesellschaft Mit Beschrankter Haftung · Inventors: Himmelsbach, Frank; Linz, Gunter; Guth, Brian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to bicyclic heterocyclic compounds of general formula, , (I), wherein, A to F Y1 and Y2 are defined as in claim 1, the tautomers thereof, the stereoisomers thereof including their mixtures, and salts thereof, particularly the physiologically acceptable salts thereof with organic or inorganic acids or bases, which have valuable pharmacological properties, preferably aggregationinhibiting effects, pharmaceutical compositions containing the compounds and processes for preparing them as well as new intermediate products of general formula Ia.
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 July 20, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 20, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 20, 2016.
- 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.