US3039077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sonar dome unit
Assignee: Individual
•
Filing: 1957-05-21
•
Granted: 1962-06-12
•
Expires: 1977-05-21
Abstract
No abstract record available.
Inventors
- 👤 Marvin L Lasky
- 👤 Leo F Fehlner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:00
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB581739A
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US2420676A
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US2383415A
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US2434666A
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US2832944A
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US2578678A
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US2642920A
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US2755216A
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US2750589A
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US2854668A
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US2797399A
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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) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |