Patent US2000149A successfully refreshed from Google Patents.
Patent US3714209A successfully refreshed from Google Patents.
US3714209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isopropylidineaminoethanol salt of p-nitrobenzenesulfonylurea
Assignee: Monsanto Co
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Filing: 1971-02-22
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Granted: 1973-01-30
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Expires: 1991-02-22
Abstract
Abstract A NOVEL SALT OF P-NITROBENZENESULFONYLUREA HAVING THE FORMULA ((4-(NO2)-PHENYL)-SO2-N(-)-C(-O-)-NH2) (-) (H3C-)2C=NH(+)-CH2-CH2-OH WHICH IS FORMED BY THE REACTION OF P-NITROBENZENESULFONYLUREA WITH ETHANOLAMINE AND ACETONE. THIS COMPOUND HAS HERBICIDAL ACTIVITY.
Inventors
- 👤 C Tung
- 👤 J Powers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:32
CPC Classifications
C; C07; C07C; C07C333/00; C07C333/14; C07C333/18; C07C333/26
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) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |