US4001272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Herbicidal 2-fluoro-4-halo-phenyl-4,5,6,7-tetrahydro-2h-isoindole-1,3-diones
Assignee: EIDP Inc
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Filing: 1974-12-24
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Granted: 1977-01-04
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Expires: 1994-12-24
Abstract
Abstract This invention relates to herbicidal 2-fluoro-4-halo-phenyl-4,5,6,7-tetrahydro-2H-isoindole-1,3-diones. These compounds may be used for selective weed control in certain crops or for total vegetation control.
Inventors
- 👤 Steven Jerome Goddard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:52
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
3 words
The compound 2-(4-chloro-2-fluorophenyl)-4,5,6,7-tetrahydro-2H-isoindole-1,3-dione.
Claim 2
Dependent Claim
3 words
The compound 2-(4-chloro-2-fluorophenyl)-4,5,6,7-tetrahydro-2H-isoindole-1,3-dione.
Claim 3
Dependent Claim
3 words
The compound 2-(4-bromo-2-fluorophenyl)-4,5,6,7-tetrahydro-2H-isoindole-1,3-dione.
Claim 4
Dependent Claim
3 words
The compound 2-(4-bromo-2-fluorophenyl)-4,5,6,7-tetrahydro-2H-isoindole-1,3-dione.
Claim 5
Dependent Claim
3 words
The compound 2-(2,4-difluorophenyl)-4,5,6,7-tetrahydro-2H-isoindole-1,3-dione.
Claim 6
Dependent Claim
3 words
The compound 2-(2,4-difluorophenyl)-4,5,6,7-tetrahydro-2H-isoindole-1,3-dione.
References Cited (Backward Citations)
FR2119703A5
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-04 | 1980-07-05 | 1981-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-04 | 1984-07-05 | 1985-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-04 | 1988-07-05 | 1989-01-04 | $7700.00 | Window Closed / Lapsed |