US2632342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rail drill
Assignee: —
•
Filing: —
•
Granted: 1953-03-24
•
Expires: 1970-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:14
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/24; B; B23; B23Q; B23Q2709/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US16900A
Cited
US271026A
Cited
US277735A
Cited
US411664A
Cited
US554890A
Cited
US1115402A
Cited
US1799488A
Cited
US2005122A
Cited
US2376524A
Cited
US2345931A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |