US3775463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-phenyl-n'-alkoxy ester ureas
Assignee: BASF SE
•
Filing: 1972-05-16
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Granted: 1973-11-27
•
Expires: 1992-05-16
Abstract
Abstract N-PHENYL-N''-ALKOXY ESTER UREA COMPOUNDS HAVING HERBICIDAL PROPERTIES.
Inventors
- 👤 A Fischer
- 👤 K Koenig
- 👤 G Steinbrunn
- 👤 A Zschocke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:39
CPC Classifications
C; C07; C07C; C07C275/00; C07C275/64
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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |