Use of arylindole derivatives for the treatment of psychoses
CA 2126571 A1 · Owner: Skarsfeldt, Torben · Inventors: Skarsfeldt, Torben; Perregaard, Jens Kristian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
2126571 9312790 PCTABS00024, 6-and/or 2-substituted 1-arylindole derivative of general formula (I), where Ar is optionally substituted phenyl or a hetero aromatic group; X and X' are hydrogen, halogen alkyl, alkoxy, hydroxy, alkylthio, alkylsulfonyl alkyl- or dialkylamino, cyano, trifluoromethyl or trifluoromethylthio; or X and X' are linked to constitute a 5-7 membered carbocyclic ring; R1 is hydrogen or, lower alkyl, provided that when X is hydrogen or fluoro then R1 is, not hydrogen; Y is nitrogen or carbon; R is hydrogen alkyl, alkenyl, cycloalkyl, or cycloalkylmethyl or R is a substituent of, formula (1a) or (1b) wherein n is 2-6; W is oxygen or sulfur; U is nitrogen or carbon; Z is …
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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 December 21, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 21, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 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.