US3672866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of n-(sec-butyl)-4-(t-butyl)-2,6-dinitroaniline as a selective herbicide
Assignee: Rhone Poulenc Nederland BV
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Filing: 1970-11-12
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Granted: 1972-06-27
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Expires: 1990-11-12
Abstract
Abstract NOVEL HERBICIDALLY ACTIVE 4BUTYL-2,6-DINITROANILINE DERIVATIVES ARE PREPARED BY NITRATION OF 4-BUTYLPHENOL, FOLLOWED BY CONVERSION OF THE RESULTING 2,6-DINITROPHENOL INTO THE CHLORO-DERIVATIVE AND FINALLY REACTING THE CHLORODERIVATIVE WITH A PRIMARY AMINE.
Inventors
- 👤 John Joseph Damiano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:23
CPC Classifications
C; C07; C07C; C07C205/00; C07C205/07; C07C205/11; C07C205/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |