Herbicide combination with acylated aminophenylsulfonylureas
CA 2396119 C · Owner: Bayer Cropscience Ag · Inventors: Bieringer, Hermann; Hacker, Erwin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Herbicide combinations with a content of components (A) and (B) have synergistic herbicidal effects:, (A) one or more herbicides of the formula (I) or their salts (see formula I) , where R1, R2, R3, X, Y and Z are as defined in claim 1 and, (B) one or more herbicides selected from amongst the specific herbicides of the following groups of compounds: (B1) herbicides which act selectively in some dicotyledonous crops against monocotyledonous and dicotyledonous harmful plants (B2) herbicides which act selectively in some dicotyledonous crops predominantly against dicotyledonous harmful plants and, (B3) herbicides which act selectively in some dicotyledonous crops predominantly against …
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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
- Filed November 11, 2000 and granted May 17, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 11, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 11, 2022.
- 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.