US3470432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer,transducer system and transducer suspension spring
Assignee: United States Department of the Navy
•
Filing: 1967-07-21
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Granted: 1969-09-30
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Expires: 1987-07-21
Abstract
No abstract record available.
Inventors
- 👤 John G Chubbuck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:45
CPC Classifications
A; A61; A61B; A61B9/00; A61B9/005; A61B5/00; A61B5/0048; A61B5/0051; A61B5/0053; A61B5/44; A61B5/441; A61B5/442; G; G05; G05D; G05D3/00; G05D3/12; G05D3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2800796A
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US2742035A
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US2907320A
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US3047661A
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US2895094A
Cited
US3040223A
Cited
US2968952A
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US3206652A
Cited
US3308653A
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US3353040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |