Agricultural/horticultural insecticide and method for using the same
CA 2772017 C · Owner: Mitsui Chemicals, Inc. · Inventors: Yoshida, Kei; Kai, Akiyoshi; Kawahara, Atsuko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An object of the present invention is to provide insecticides having high effectiveness. The present invention provides compounds represented by formula (1): (see formula 1) wherein A1 A2, A3, and A4 independently represent a carbon atom a nitrogen atom, or an oxidized nitrogen atom; R1 represents a C1-C6 alkyl group which may be substituted a phenyl group which may be substituted or a heterocyclic group which may be substituted; R2 and R3 independently represent a hydrogen atom a C1-C4 alkyl group which may be substituted or a C1-C4 alkylcarbonyl group which may be substituted; G1 G2, and G3 independently represent an oxygen atom or a sulfur atom; Xs may be the same or different and each …
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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
- Filed August 23, 2004 and granted May 31, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 23, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 23, 2026.
- 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.