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US 4,440,564 AGranted
Heterocyclic pentalenes as herbicides
AssigneeShell Oil Company
InventorsMichael T. Clark, Ian J. Gilmore
Life of this patent
Estimating the term…
Abstract
Use as herbicides of, and herbicidal compositions containing as active ingredients, compounds of the formula: ##STR1## wherein the symbols have assigned meanings.
Claims2
A method for controlling unwanted plant growth at a locus, which comprises treating the locus with an effective dosage of a compound of the formula:
- ##STR5## wherein X is O or S, and Z, Z.sup.1, Y and Y.sup.1 each is hydrogen or alkyl of from one to three carbon atoms.
Dependencies are inferred from the claim text.