Substituted pyridine methyl esters of cyclopropane carboxylic acids and their use as insecticides
CA 1072559 A · Owner: The Dow Chemical Company · Inventors: Ricks, Michael J.; Malhotra, Sudarshan K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Substituted pyridylmethyl esters of cyclopropanecarboxylic acids which correspond to the formula: wherein each X independently represents alkyl alkoxy, alkyl-, thio, alkylsulfonyl, trifluoromethyl 3,4-methylenedioxy, chloro, fluoro, or bromo n represents an integer of 0 to 2;, Y represents oxygen or sulfur; R represents hydrogen cyano, or ethynyl; and Z represents chloro fluoro, or bromo. The compounds have been found to exhibit a high degree of insecticidal activity.
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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 February 26, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 1997.
- 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.