Pyrazoline derivatives as insecticides
CA 1108154 A · Owner: Duphar International Research B.V. · Inventors: Grosscurt, Arnoldus C.; Van Hes, Roelof
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to new pyrazoline derivatives having insecticidal properties. The new compounds correspond to the general formula (I), wherein R1 is an unsubstituted or substituted phenyl group or an alkyl group, having 1 to 6 carbon atoms which is substituted by cyano alkoxy having 1 to, 4 carbon atoms, alkylthio having 1 to 4 carbon atoms alkylsulphonyl having, 1 to 4 carbon atoms or alkoxycarbonyl having 2 to 5 carbon atoms; R2 is a group of the formula R3-A- wherein R3 is a halogen-substituted alkyl or alkenyl group having 1 to 6 carbon atoms and A stands for -O-, -S-, or -SO2-; and X and Y are each selected from hydrogen and halogen atoms. The compositions can be used for …
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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 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 1998.
- 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
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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.