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Expired Canadian patentCanada

Imidazole compounds and biocidal composition comprising the same for controlling harmful organisms

CA 1340949 C · Owner: Suzuki, Kazumi · Inventors: Komyoji, Terumasa; Ohshima, Takeshi; Nakajima, Toshio

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Abstract From the Canadian patent

This invention relates to intermediate compounds represented by a compound as an intermediate represented by the following general formula (II'):, (see formula I) wherein R2 an R3 each represents a hydrogen atom; a halogen atom; a nitro group; a cyano group; a trimethylsilyl group; a C3-6 cycloalkyl group; a naphthyl group; an unsubstituted C1-12 alkyl group or a substituted C1-12 alkyl group which substituent is selected from the group consisting of one or more halogen atoms, hydroxyl groups, acetoxy groups C1-4 alkoxy groups, halogenated C1-4 alkoxy groups phenyl groups, halogenated, phenyl groups or C1-4 alkylated phenyl groups; an, unsubstituted C2-10 alkenyl group or a substituted …

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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 April 4, 2000. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 4, 2017.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 3, 1988
GrantedApril 4, 2000
Term endedApril 4, 2017
Patent numberCA 1340949 C
Classification (IPC)C07D233/90 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007201020132016Application filedMarch 3, 1988Patent grantedApril 4, 2000Term endedApril 4, 2017

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.