1-(HALOALKYL)-1,2,3,4-TETRAHYDRO-.beta.-CARBOLINES, THEIR PREPARATION AND THEIR USE
CA 1215052 A · Owner: Basf Aktiengesellschaft · Inventors: Kropp, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure: Salts of 1,2,3,4-tetrahydro- .beta.-carbolines of the formuLa I, (I) where R is hydrogen, halogen, C1-C4-alkyl C1-C4-alkoxy, or trifluoromethyl, X is halogen and n is an integer from 2 to 5, and their preparation are described. The compounds are intermediates for the preparation of pharmacologically active substances.
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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 December 9, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 9, 2003.
- 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.