US4138242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel 2-aryl-2,3,5,6,7,8-hexahydro-3-thioxoimidazo-[1,5-a-]pyridin-1(BaH)-ones as herbicides
Assignee: EIDP Inc
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Filing: 1976-12-07
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Granted: 1979-02-06
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Expires: 1996-12-07
Abstract
Abstract This invention relates to novel 2-aryl-2,3,5,6,7,8-hexahydro-3-thioxoimidazo[1,5-a]pyridin-1(8aH)-ones and their use as herbicides. These novel compounds may be used for selective weed control in certain crops or for total vegetation control.
Inventors
- 👤 Steven J. Goddard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:18
CPC Classifications
A; A01; A01N; A01N43/00; A01N43/90; C; C07; C07D; C07D471/00; C07D471/02; C07D471/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
66 words
A method for the control of undesirable vegetation comprising applying to the locus of such undesired vegetation a herbicidally effective amount of a compound of the formula ##STR10## wherein Z is hydrogen or fluorine; Y is hydrogen or fluorine; and X is bromine, chlorine, fluorine, methoxy, cyano, or nitro; provided that when Z is in the meta position and is fluorine, Y must also be fluorine.
Claim 2
Independent Claim
66 words
A method for the control of undesirable vegetation comprising applying to the locus of such undesired vegetation a herbicidally effective amount of a compound of the formula ##STR10## wherein Z is hydrogen or fluorine; Y is hydrogen or fluorine; and X is bromine, chlorine, fluorine, methoxy, cyano, or nitro; provided that when Z is in the meta position and is fluorine, Y must also be fluorine.
Claim 3
Dependent Claim
80 words
A method for the control of undesirable vegetation comprising applying to the locus of such undesired vegetation a herbicidally effective amount of the compound of claim 1 wherein X is chlorine or fluorine; provided 1) that when X is fluorine at least one of Y or Z must be fluorine, 2) that when X is chlorine, at least one of Y or Z must be hydrogen and 3) that when Y and Z are both fluorine, X is also fluorine.
References Cited (Backward Citations)
DE1445797A1
Cited
GB1114397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |