Liquid herbicidal agents
CA 2018035 C · Owner: Bayer Cropscience Ag · Inventors: Schumacher, Hans; Heinrich, Rudolf; Albrecht, Konrad
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to liquid herbicidal agents in the form of emulsifiable concentrates (EC) or concentrated emulsions (EW), which, in addition to 1 - 40% by weight of the active compound diclofop-methyl (I) fenoxaprop-ethyl (II) or the optically active isomer (D+) thereof fenoxaprop-P-ethyl (III), contain as, surfactants, 0.5 - 30% by weight of (C10-C18-fatty alcohol polyglycol ethers or (C8-C9)-alkylphenyl polyglycol ethers which are ethoxylated with 6 - 10 mol of ethylene oxide and in the case of EC formulations 0.5 - 7% by weight of calcium (C8-C14)-alkylbenzenesulfonate and in the case of, EW formulations, as a dispersing agent 0.5 - 7% by, weight of an ethylene …
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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 June 1, 1990 and granted August 29, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 1, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 1, 2012.
- 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.