Dihydroimidazoisoindolediones and the use thereof as herbicidal agents
CA 1080717 A · Owner: American Cyanamid Company · Inventors: Los, Marinus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to novel dihydroimidazoisoindoledione compounds and the optical and stereo isomers thereof. This invention also relates to a method for the control of undesirable plant species with the dihydroimidazoisoindolediones and their optical and stereo isomers and further, to a process for the preparation of the compounds. The novel compounds are those of the formula, wherein X is H, CH3 NO2, C1, OCH3 or SCH3; R1 is alkyl C1-C4; R2 is alkyl C1-C6, cycloalkyl C3-C6, alkenyl C2-C4 phenyl, halophenyl or benzyl; and, when R1 and R2 are taken together with the carbon to which they are attached they may form cycloalkyl C3-C6 optionally substituted with methyl; Y is hydrogen, -NR3R4, …
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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 July 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 1, 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
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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.