US2567422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Tennessee Coal Iron and Railroad Co
•
Filing: 1948-01-08
•
Granted: 1951-09-11
•
Expires: 1968-01-08
Abstract
No abstract record available.
Inventors
- 👤 James B Camp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:50
CPC Classifications
G; G06; G06M; G06M7/00; G06M7/02; G06M7/06
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |