US2460274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submarine signaling apparatus
Assignee: Submarine Signal Co
•
Filing: 1942-12-09
•
Granted: 1949-02-01
•
Expires: 1962-12-09
Abstract
No abstract record available.
Inventors
- 👤 Benioff Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:37
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/18; G10K11/26; G10K11/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US768573A
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US1051543A
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US1471547A
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US1345717A
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US1464103A
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US1461220A
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US1836397A
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GB395081A
Cited
US2049586A
Cited
US2155163A
Cited
US2153571A
Cited
US2228024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-01 | 1952-08-02 | 1953-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-01 | 1956-08-02 | 1957-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-01 | 1960-08-02 | 1961-02-01 | $7700.00 | Window Closed / Lapsed |