Herbicides
CA 1291344 C · Owner: Bieringer, Hermann · Inventors: Bieringer, Hermann; Langeluddeke, Peter; Mildenberger, Hilmar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Herbicides The invention relates to herbicides which contain an active ingredient of the formula I, (I) in which A1 denotes H and A2 denotes NH2 or A1 and, A2 together denote an oxygen atom V denotes O or NH, Y, in the case where V denotes O denotes hydrogen or, alkyl or, in the case where V - NH denotes a radical of, the formula -CH(CH3)-CONH-CH(CH3)-COOH or -CH(CH3)- CONH-CH-CH2CH(CH3)2-COOH, and W denotes hydrogen or a, salt thereof, in combination with a compound of the formula II (II), in which, R1 denotes alkyl, alkenyl or alkynyl which may in each, case be halogenated (di)alkylamino, N-alkylsulfonyl-N-, alkyl-amino where the alkyl radicals may be halogenated a (substituted) phenyl, …
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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 October 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 29, 2008.
- 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.