Derivatives of tetralone and the preparation thereof
CA 1053680 A · Owner: A. Christiaens Societe Anonyme · Inventors: Vanhoof, Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
New 2-R-tetraline-1-one derivatives and their process of preparation are provided; the derivatives have the formula: (I), in which R represents a pyridyl or phenyl radical which may be substituted, in the ortho, meta or para position by a methoxy, group; the derivatives are uaeful as intermediates in the preparation of known 2-R-amino-tetralines which are active against heart arrhythmy.
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 1, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 1, 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.