10-substituted 5-cyanomethylene-10,11-dihydro-dibenzo- a,d- cycloheptenes, their preparation, and therapeutic agents containing these compounds
CA 1163264 A · Owner: Basf Aktiengesellschaft · Inventors: Teschendorf, Hans-Juergen; Hofmann, Hans P.; Kreiskott, Horst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
10-Substituted 5-cyanomethylene-10,11-dihydro-dibenzoa,d-cycloheptenes their pharmaceutically tolerated addition salts with acids, processes for their preparation and their use, as drugs, especially as sedatives hypnotics or tran-, quilizers.
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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
- Granted March 6, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 6, 2001.
- 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
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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.