3-phenyl-sec-butylamine derivatives
CA 1078408 A · Owner: Astra Lakemedel Aktiebolag · Inventors: Ross, Svante B.; Florvall, Gosta L.; Ogren, Sven O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds, and processes to make them of the formula:, or a pharmaceutically acceptable salt thereof in which formula R1 and R2, are the same or different and each represents a hydrogen atom a lower alkyl, group or a halogen atom R3 represents a lower alkyl group or a benzyl group R4 represents a hydrogen atom, a lower alkyl group or a benzyl group provid-, ed that R1 and/or R2 represents a lower alkyl group or a halogen atom when R3 and R4 represents a methyl group. These compounds find use as antidepressants.
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 May 27, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 27, 1997.
- 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.