O-alkyl-o-(7-alkyl-pyrazolo-(1,5-a) pyrimidin-(2)yl) -(thiono)-phosphoric (phosphonic) acid esters and ester-amides
CA 1069893 A · Owner: Bayer Aktiengesellschaft · Inventors: Colln, Reimer; Behrenz, Wolfgang; Hoffmann, Hellmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
0-ALKYL-0-7-ALKYL-PYRAZOLO-(1,5-a)PYRIMIDIN- (2)YL-(THIONO)-PHOSPHORIC(PHOSPHONIC) ACID ESTERS AND ESTER-AMIDES, Abstract, 0-Alkyl-0-7-alkyl-pyrazolo (1,5-a)pyrimidin(2)yl- (thiono)-phosphoric(phosphonic) acid esters and ester-amides of the formula, (I), in which, R1 is alkoxy with 1 to 6 carbon atoms R2 is alkyl or alkoxy each with 1 to 4 carbon atoms or alkylamino with up to 6 carbon atoms R3 is hydrogen or halogen, R4 is alkyl with 2 to 6 carbon atoms and, X is oxygen or sulfur, which possess arthropodical and nematicidal properties.
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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 January 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 15, 1997.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.