Fluoroalkene carboxylic acid derivatives, method for producing said derivatives, and insecticidal agents containing the same
CA 2291441 A1 · Owner: Maienfisch, Peter · Inventors: Boger, Manfred; Maienfisch, Peter; Gogh, Tibor
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to fluoroalkene carboxylic acid derivatives of general formula (I), in which R1 and R2 are hydrogen (independently of each other) or , alkyl, a group of formula (II), cycloalkyl alkenyl or alkynyl, which are , optionally substituted; R3 is hydrogen fluorine, or methyl; m is 0, 1, 2, 3, 4 or 5; n is 0 or 1; X is oxygen or NR4 and R4 is hydrogen or C1-C6-alkyl or benzyl, which are optionally substituted. The invention also relates to a method for their production, to insecticides containing the new fluoroalkene carboxylic derivatives as active agent and their use against harmful insects and acarians.
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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 May 29, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 29, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 2020.
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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.