US2853824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submarine echo-sounding apparatus for fishing vessels
Assignee: ELECTRICITE ET DE RADIO SOC GE
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Filing: 1955-09-19
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Granted: 1958-09-30
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Expires: 1975-09-19
Abstract
No abstract record available.
Inventors
- 👤 Schutz Nicolas Pierre
- 👤 Woodgate Ralph William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:48
CPC Classifications
G; G01; G01S; G01S15/00; G01S15/88; G01S15/96; Y; Y10; Y10S; Y10S367/00; Y10S367/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2426989A
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US2454782A
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US2419541A
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US2644156A
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US2757354A
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US2788509A
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US2765565A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |