Expired Canadian patentCanada
Process for the preparation of phenyl-(3- hexamethyleneiminopropyl)-ketone
CA 1264322 C · Owner: Lafon, Louis · Inventors: Lafon, Louis
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to phenylalkylamino-ketone derivatives, namely the phenyl- (3-hexamethyleneiminopropyl)-ketone and its addition salts, by way of new industrial products. These new products are useful in therapy as vasodilating agents.
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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 9, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 9, 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.
FiledJuly 9, 1986
GrantedJanuary 9, 1990
Term endedJanuary 9, 2007
Patent numberCA 1264322 C
Classification (IPC)C07D295/10 +2 more
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.