Process for the manufacture of new derivatives of 5h-dibenz s9b,f) azepine
CA 1067900 A · Owner: Ciba-Geigy Ag · Inventors: Allgeier, Hans; Schmid, Erich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for the manufacture of new derivatives of 5H-dibenzb,fazepine, ABSTRACT OF THE DISCLOSURE The invention relates to processes for the manufacture of new derivatives of 5H-dibenzb,fazepine of the general formula, (I), wherein Hal represents halogen with an atomic number up to 35 and R represents hydrogen or halogen with an atomic number up to 35. These new compounds possess valuable pharmacological properties. In particular they have a prolonged anticonvulsive activity and are useful as active substances for pharmaceutical compositions for the treatment of epilepsy.
Read the whole patent
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 11, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 11, 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
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.