Herbicidal compositions comprising hppd inhibitors and certain surfactants
CA 2417469 C · Owner: Kocur, Jean · Inventors: Martinez De Una, Julio; Hacker, Erwin; Krause, Hans-Peter
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 a herbicidal composition comprising A) one or more compounds of the formula (I) (see formula I) , where V is an unsubstituted or substituted heterocyclyl radical or a radical -CR.alpha. = CR.beta. R.beta.1, where R.alpha. and R.beta. are identical or different carbon-containing , C1-C40 radicals which together can form an unsubstituted or substituted ring and R.beta.1 is OH or a carbon-containing C1-C40 radical and Z is an , unsubstituted or substituted aryl radical and, B) one or more surfactants comprising as structural element, at least 10, alkylene oxide units.
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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 8, 2001 and granted November 1, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 8, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 2023.
- 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.