Substituted benzoylcyclohexandiones
CA 2338304 A1 · Owner: Muller, Klaus-Helmut · Inventors: Muller, Klaus-Helmut; Wroblowsky, Heinz-Jurgen; Feucht, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to substituted benzoylcyclohexandiones of general formula (I), wherein A represents a single bond or alkane diyl (alkene) and Z represents an optionally substituted 4-12 membered saturated on unsaturated, monocylic or bicyclic heterocyclic group containing 1-4 heteroatoms (up to 4 nitrogen atoms and optionally - alternatively or additively - an oxygen atom or a sulphur atom, or an SO group or an SO2 group) and which additionally contains one to three oxo groups (C=O) and/or thioxo groups as constituents of the heterocycle. The invention also relates to a method for producing said substituted benzoylcyclohexandiones and to the use thereof as herbicides.
Read the whole patent
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 July 13, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 13, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 13, 2021.
- 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.