Carbazates
CA 1260483 A · Owner: Egis Gyogyszergyar Rt. · Inventors: Benko, Pal; Ratz, Ildiko Nee Simonek; Magyar, Karoly
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to new carbazates of the general formula (I), (I), wherein, A is C3-10 alkyl C3-10 alkenyl, C2-10 haloalkyl, trifluoromethyl phenyl-C1-3alkyl, phenyl-C2-3-, alkenyl naphthyl-C1-3alkyl; phenyl optionally, substituted by one or more identical or different substituent(s) selected from C1-4 alkyl halogen, C1-4 alkoxy and hydroxy; C3-7 cycloalkyl-C1-3alkyl; optionally nitro-substituted furyl; diphenylhydroxy-methyl or indazolyl optionally substituted by one or more C1-4 alkoxy group(3) and R represents C1-4 alkyl, with the proviso that if R stands for ethyl A is other, than tertiary butyl, and acid addition salts thereof a process for the prepara-, tion thereof and …
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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 September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- 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.