Substituted pyrazoles
CA 1047502 A · Owner: Basf Aktiengesellschaft · Inventors: Fischer, Adolf J.; Reicheneder, Franz X.J.G.M.; Kropp, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
New and valuable substituted pyrazoles herbicides, containing these compounds as active ingredients and a, process for controlling the growth of unwanted plants with these compounds. The substituted pyrazoles have the general formula :, (I), where R1 denotes hydrogen alkyl, cycloalkyl, aralkyl, phenyl, or acyl of the formula :, R6 denoting hydrogen alkyl or alkyl substituted by dichlorophenoxy alkoxy, phenoxy or phenyl, and R7 and R8 being identical or different and each denoting hydrogen, alkyl phenyl or alkynyl, R2, denotes alkyl, cycloalkyl phenyl or phenyl substituted by halogen or alkyl, or thienyl radical, R3 denotes hydrogen chloro, bromo, or lower alkyl, and R4 denotes the radicals …
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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 30, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 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.