US3560914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer vessel
Assignee: United States Department of the Navy
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Filing: 1968-07-03
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Granted: 1971-02-02
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Expires: 1988-07-03
Abstract
Abstract A COMBINED PRESSURE VESSEL AND ELECTROACOUSTICAL TRANSDUCER IS DISCLOSED WHEREIN THE TRANSDUCER UNIT SERVES AS A PORTION OF THE CASING. IN ONE CONSTRUCTION, THE TRANSDUCER IS AN ANNULAR MEMBER POSITIONED BETWEEN A PAIR OF HEMISPHERES. ALL TRANSDUCER ELECTRICAL CONNECTIONS ARE INTERNAL AND THE APPARATUS CONSEQUENTLY CAN WITHSTAND MAXIMUM HYDROSTATIC PRESSURES.
Inventors
- 👤 Douglas C Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:33
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0644; B06B1/0655; G; G01; G01D; G01D21/00; G01D21/02; G10; G10K; G10K11/00; G10K11/004
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |