Benzoylurea compounds, and pesticidal compositions comprising the same
CA 1258676 A · Owner: Duphar International Research B.V. · Inventors: Grosscurt, Arnoldus C.; Brouwer, Marius S.
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 benzoylurea compounds of the general formula I, (I), wherein R1 is a halogen atom R2 is a hydrogen atom or a halogen atom R3 is a hydrogen atom or represents 1 or 2 substituents which are selected from the group consisting of chlorine methyl and tri-, fluoromethyl, R4 is a hydrogen atom an alkyl group having 1-6 carbon atoms or a cycloalkyl group having 3-6 carbon atoms R5 is a hydrogen atom or an alkyl group having 1-4 carbon atoms A is a phenyl group or a heteroaryl group having 1 or 2 nitrogen atoms, which groups may be substituted with 1-3 substituents which are selected from the group consisting of halogen and, alkyl, alkoxy, haloalkyl and haloalkoxy having …
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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 August 22, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 22, 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.