New thiochromane derivatives and their use as thrombin inhibitors
CA 2407222 A1 · Owner: Karlsson, Olle · Inventors: Andersson, Kjell; Inghardt, Tord; Linschoten, Marcel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided compounds of formulae (I) and (IA) wherein Y R1, R2, R3, D1 , and D2 have meanings given in the description which are useful as or as , prodrugs of, competitive inhibitors of trypsinlike proteases such as , thrombin, and in particular in the treatment of conditions where inhibitors of thrombin is required (e.g. thrombosis) or as anticoagulants.
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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 May 14, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 14, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 2023.
- 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.