N-sulfonyl-imino-thiocarbonic acid diesters as herbicide antagonists for the protection of rice crops
CA 1208925 A · Owner: Ciba-Geigy Investments Ltd. · Inventors: Topfl, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1 -, N-Sulfonyl-imino-thiocarbonic acid diesters as herbicide antagonists for the protection of rice crops Abstract, N-Sulfonyl-imino-thiocarbonic acid diesters of the formula I, (I), wherein, n is zero, 1, 2 or 3 R is halogen, cyano, nitro, a radical -Y-C1-C4-alkyl -Y-C3-C6-alkenyl, -Y-C3-C6-alkynyl, -Y-phenyl or -Y-aralkyl, each unsubstituted or substituted by halogen, cyano, nitro, C1-C4-alkoxy, C1-C4-alkoxycarbonyl, carbamoyl, sulfamoyl, C1-C4-mono- or dialkylcarbamoyl, C1-C4-mono- or dialkylsulfamoyl or is a radical -COOR3, -NR3R4, -CONR3R4 -NHCONR3R, or -SO2NR3R4, or two adjacent R's together form a 3- or 4-membered, saturated or unsaturated hydrocarbon chain, the chain members of …
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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 August 5, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 5, 2003.
- 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.