Cyclohexenol derivatives and their use for controlling undesirable plant growth
CA 1250293 A · Owner: Basf Aktiengesellschaft · Inventors: Wuerzer, Bruno; Schirmer, Ulrich; Meyer, Norbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to new cyclohexenol derivatives of the formula (I):, (I), wherein R1 is a tetrahydropyran radical a tetrahydro-, thiopyran radical a 1-oxo-tetrahydrothiopyran radical or a 1,1-dioxo-tetrahydropyran radical, X is hydrogen or methoxycarbonyl, R2 is alkyl atoms, R3 is alkyl alkenyl haloalkenyl, or propargyl, and A is a radical of the general structure DE, where D is methylene, CO or SO2 and E is an alkyl or alkenyl radical of not more than 20 carbon atoms unsubstituted or methyl-substituted cycloalkyl or styryl, or is a phenyl or benzyl radical which is unsubstituted or substituted, or is a 1-methylbenzyl or 1,1-dimethylbenzyl radical which is unsubstituted or substituted …
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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 February 21, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 21, 2006.
- 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.