US3987057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Herbicidal 2-(substituted aryl)-3a,4,5,6,7,7a-hexahydro-1h-isoindole-1,3(2h)-diones
Assignee: EIDP Inc
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Filing: 1975-01-30
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Granted: 1976-10-19
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Expires: 1995-01-30
Abstract
Abstract This invention relates to herbicidal 2-(substituted aryl)-3a,4,5,6,7,7a-hexahydro-1H-isoindole-1,3(2H)-diones. These compounds may be used for selective weed control for certain crops or for total vegetation control. In particular, the compounds may be utilized as rice herbicides and have the formula ##SPC1## Wherein X is Cl, Br or F, and Y is H or F, provided that when Y is F, X is F.
Inventors
- 👤 Steven Jerome Goddard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:56
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
28 words
A compound of the formula ##SPC9## wherein X is Cl, Br or F, and Y is H or F, provided that when Y is F, X is F.
Claim 2
Dependent Claim
28 words
A compound of the formula ##SPC9## wherein X is Cl, Br or F, and Y is H or F, provided that when Y is F, X is F.
Claim 3
Dependent Claim
6 words
A compound of claim 1, 2-(4-chloro-2-fluorophenyl-3a,4,5,6,7,7a-hexahydro-1H-isoindole-1,3a(2H)-dione.
Claim 4
Dependent Claim
6 words
A compound of claim 1, 2-(4-bromo-2-fluorophenyl)-3a,4,5,6,7-7a-hexahydro-1H-isoindole-1,3(2H)-dione.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-19 | 1980-04-19 | 1980-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-19 | 1984-04-19 | 1984-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-19 | 1988-04-19 | 1988-10-19 | $7700.00 | Window Closed / Lapsed |