.beta.-carboline-3-oxadiazolyl derivatives, method of preparing the same and_their use
CA 1264748 C · Owner: Watjen, Frank · Inventors: Petersen, Erling Niels; Jensen, Leif Helth; Seidelmann, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
New .beta.-Carboline-3-oxadiazolyl derivatives. New .beta.-carboline-3-oxadiazolyl derivatives having the general formula 1:, (1), wherein X is , and wherein R4 RA and R have specified meanings. The new compounds which exhibit surprising psychotropic properties are prepared by analogy methods.
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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 January 23, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 2007.
- 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.