US2557772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-[2-methoxy-3-(1, 2-dicarboxyethylthiomercuri)-propyl]-phthalamide
Assignee: WM S MERRELL CO
•
Filing: 1950-03-01
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Granted: 1951-06-19
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Expires: 1970-03-01
Abstract
No abstract record available.
Inventors
- 👤 Robert S Shelton
- 👤 Josselyn L Farmer
- 👤 Charles H Tilford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:54
CPC Classifications
C; C07; C07F; C07F3/00; C07F3/10; C07F3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1672615A
Cited
GB619515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |