Patent US3257191A successfully refreshed from Google Patents.
US3257191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2, 5-halo-3-amino-benzoic acids and their use as selective herbicides
Assignee: Hooker Chemical Corp
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Filing: 1963-05-15
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Granted: 1966-06-21
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Expires: 1983-05-15
Abstract
No abstract record available.
Inventors
- 👤 Edward D Weil
- 👤 Dorfman Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:07
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/52
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
13 words
A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF THE COMPUND OF THE FORMULA:
Claim 2
Dependent Claim
13 words
A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF THE COMPUND OF THE FORMULA:
Claim 3
Independent Claim
41 words
A METHOD FOR THE SELECTIVE CONTROL OF WEEDS WHICH COMPRISES APPLYING TO THE LOCUS TO BE TREATED A PHYTOTOXIC AMOUNT OF A COMPOSITION CONTAINING AS AN ACTIVE INGREDIENT A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF THE COMPOUND OF THE FORMULA:
Claim 4
Independent Claim
41 words
A METHOD FOR THE SELECTIVE CONTROL OF WEEDS WHICH COMPRISES APPLYING TO THE LOCUS TO BE TREATED A PHYTOTOXIC AMOUNT OF A COMPOSITION CONTAINING AS AN ACTIVE INGREDIENT A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF THE COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
US3057879A
Cited
US2714587A
Cited
US3014063A
Cited
US3092483A
Cited
US3097944A
Cited
US3040061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |