US2462662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stope jack
Assignee: Individual
•
Filing: 1947-10-10
•
Granted: 1949-02-22
•
Expires: 1967-10-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Niceley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:12
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/08; E; E21; E21D; E21D15/00; E21D15/14; E21D15/16; E21D15/24
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) | 1952-02-22 | 1952-08-23 | 1953-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-22 | 1956-08-23 | 1957-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-22 | 1960-08-23 | 1961-02-22 | $7700.00 | Window Closed / Lapsed |