Aminoalcohols, their preparation process and their applications, particularly in therapeutics
CA 1294961 C · Owner: Jouveinal S.A. · Inventors: Bure, Jacques; Junien, Jean-Louis; Gouret, Claude
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Aminoalcohols of formula:, (I) in which R1 is alkyl, R2 H or alkyl, R3 in particular H alkyl, phenylalkyl, alkanoyl, phenylalkanoyl in which N, R2 and R3, together form a heterocycle saturated with 5 to 7 chain links are useful as analgesics.
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 January 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 28, 2009.
- 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.