Miticidal and aphicidal method utilizing 2-higher alkyl-3-hydroxy-1, 4-naphthoquinone carboxylic acid esters
CA 1070321 A · Owner: E.I. Du Pont De Nemours And Company · Inventors: Fost, Dennis L.; Bellina, Russell F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a novel pesticidal e.g. miticidal and aphicidal method utilizing an active ingredient which is represented by the following formula: I, wherein, R1 is alkyl of 8-14 carbon atoms either branched cyclic or straight chain; and, R2 is alkyl of 1-6 carbon atoms either branched or straight chain or cycloalkyl of 3-6 carbon atoms.
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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 22, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 22, 1997.
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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.