US2580834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Depth control system for torpedoes
Assignee: Individual
•
Filing: 1946-03-08
•
Granted: 1952-01-01
•
Expires: 1966-03-08
Abstract
No abstract record available.
Inventors
- 👤 Herbert L Prescott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:04
CPC Classifications
F; F42; F42B; F42B19/00; F42B19/01; F42B19/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1080116A
Cited
US1378291A
Cited
US1532616A
Cited
US1360325A
Cited
US1360276A
Cited
US1360259A
Cited
US1570542A
Cited
US1800365A
Cited
US2099808A
Cited
US2100934A
Cited
US2340174A
Cited
US2417768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |