3-(substituted phenyl) pyrazole derivatives, salts thereof, herbicides therefrom, and process for producing said derivatives or salts
CA 1316175 C · Owner: Mabuchi, Tsutomu · Inventors: Mabuchi, Tsutomu; Kajioka, Mitsuru; Miura, Yuzo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There are disclosed a (3-substituted phenyl)pyrazole derivative represented by the general formula (I), wherein R1, R2, R3, R4 and X are various substituents and a salt thereof, and its production process. Said pyrazole derivative or its salt is useful as a herbicide for controlling various injurious weeds.
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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 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 13, 2010.
- 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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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.