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US1430162A
Expired / Lapsed
US
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Apparatus for detecting and indicating the presence of submarine boats
Assignee: Individual
•
Filing: 1917-06-26
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Granted: 1922-09-26
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Expires: 1937-06-26
Abstract
No abstract record available.
Inventors
- 👤 Elia Giovanni Emanuele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:29
CPC Classifications
F; F41; F41H; F41H11/00; F41H11/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1925-09-25 | 1926-03-27 | 1926-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-09-25 | 1930-03-27 | 1930-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-09-25 | 1934-03-27 | 1934-09-26 | $7700.00 | Window Closed / Lapsed |