N-aryl-3-aryl-4-substituted-2,3,4,5-tetrahydro-1h-pyrazole- 1-carboxamides and methods for their production
CA 2056018 A1 · Owner: Jacobson, Richard Martin · Inventors: Jacobson, Richard Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
N-ARYL-3-ARYL-4-SUBSTITUTED-2,3,4,5-TETRAHYDRO-1H- PYRAZOLE-1-CARBOXAMIDES AND METHODS OF THEIR PRODUCTION, ABSTRACT OF THE DISCLOSURE This invention relates to novel N-ary1-3-aryl-4-substituted-2,3,4,5 tetrahydro-1H-pyrazol-1-carboxamide compounds which are useful as pesticides, compositions containing those compounds methods of, controlling pests and processes for preparing these compounds.
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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 November 22, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 22, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 2013.
- 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.