US2454262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diamino thiadiazine derivatives
Assignee: Monsanto Chemicals Ltd
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Filing: 1947-08-06
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Granted: 1948-11-16
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Expires: 1967-08-06
Abstract
No abstract record available.
Inventors
- 👤 Henry A Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:05
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/15; C07D285/16; C08; C08G; C08G12/00; C08G12/02; C08G12/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-16 | 1952-05-17 | 1952-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-16 | 1956-05-17 | 1956-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-16 | 1960-05-17 | 1960-11-16 | $7700.00 | Window Closed / Lapsed |