US2946818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of hydroxy mercapto butyric acids and derivatives thereof
Assignee: Monsanto Chemicals Ltd
•
Filing: 1953-10-01
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Granted: 1960-07-26
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Expires: 1973-10-01
Abstract
No abstract record available.
Inventors
- 👤 Constantine E Anagnostopoulos
- 👤 Robert J Wineman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:41
CPC Classifications
C; C07; C07C; C07C323/00; A; A23; A23K; A23K20/00; A23K20/10; A23K20/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2402639A
Cited
DE874913C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |