Pyrrolidine-2,5-diones and 4,5,6,7-tetrahydroisoindole- 1,3-diones
CA 1313664 C · Owner: Pissiotas, Georg · Inventors: Moser, Hans; Pissiotas, Georg; Brunner, Hans-Georg
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
21489-7503, 5-16640/=, Novel pyrrolidine-2,5-diones and 4,5,6,7-tetrahydroisoindole-1,3-diones Abstract of the Disclosure, There are disclosed novel herbicidally active pyrrolidine-2,5-diones and 4,5,6,7-tetrahydroisoindole,3-diones of formula (I), wherein, R1 is hydrogen; or C1-C4alkyl; R2 is C1-C4alkyl; or, R1 and R2, when taken together are a (CH2)4 group which may be substituted by one or two C1-C4alkyl groups; X is hydrogen; or halogen;, A is -?-R3; or O-R4; R3 is hydroxy; (C1-C8)-alkoxy; (C1-C4)-alkoxy-(C1-C4)-alkoxy; (C1-C4)alkylthio-(C1-C4)-alkoxy; mono- or di(C1-C4)-alkylamino-(C1-C4)-alkoxy; (C1-C8)-cyanoalkoxy; (C3-C8)-alkenyloxy; (C3-C8)-haloalkenyloxy; (C3-Ca)-alkynyloxy; …
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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 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 16, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.