4-(4h-benzo(4,5) cyclohepta(1,2,-6) thiopen-4-ylidene) piperidine compounds and their 9,10-dihydro derivatives
CA 1056833 A · Owner: Sandoz Ltd. · Inventors: Bastian, Jean-Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
4 - (4H-Benzo4,5 Cyclohepta 1,2-6, Thiophen - 4 - ylidene) Piperidine Compounds and Their 9,10-Dihydro Derivatives Abstract of the Disclosure, This invention provides new compounds of formula I, I, wherein R1 is hydrogen, chlorine or lower alkyl R2 is lower alkyl, R3 is lower alkyl, each of A and B is hydrogen, or, A and B together form a bond useful as luteinizing hormone secretion inhibitors e.g. for the treatment of prostrate hypertropy.
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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 June 19, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 19, 1996.
- 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.