Patent US1369587A successfully refreshed from Google Patents.
US1369587A
Expired / Lapsed
US
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Apparatus for protecting ships against torpedo attacks
Assignee: Individual
•
Filing: 1917-05-25
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Granted: 1921-02-22
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Expires: 1937-05-25
Abstract
No abstract record available.
Inventors
- 👤 Lucius E Whiton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:56
CPC Classifications
B; B63; B63G; B63G9/00; B63G9/02; B63G9/04
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) | 1924-02-22 | 1924-08-23 | 1925-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-02-22 | 1928-08-23 | 1929-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-02-22 | 1932-08-23 | 1933-02-22 | $7700.00 | Window Closed / Lapsed |