US3309653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic transducer assembly
Assignee: Bendix Corp
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Filing: 1963-06-28
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Granted: 1967-03-14
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Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Martin
- 👤 John A Merrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:49
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0644; B06B1/0662; B06B1/0674; B06B1/0607; B06B1/0622; B06B1/0633
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A TRANSDUCER ASSEMBLY FOR OPERATION IN A LIQUID MEDIUM COMPRISING A PLURALITY OF RADIALLY VIBRATILE CYLINDRICAL RADIATING ELEMENTS OF POLYCRYSTALLINE MATERIAL ARRANGED IN AN AXIALLY ALIGNED ARRAY, MEANS FOR ACOUSTICALLY ISOLATING THE INTERIOR OF SAID ARRAY FROM ITS EXTERIOR, AN ACOUSTIC TRANSMITTING LIQUID PLACED WITHIN SAID AR-
Claim 2
Dependent Claim
47 words
A TRANSDUCER ASSEMBLY FOR OPERATION IN A LIQUID MEDIUM COMPRISING A PLURALITY OF RADIALLY VIBRATILE CYLINDRICAL RADIATING ELEMENTS OF POLYCRYSTALLINE MATERIAL ARRANGED IN AN AXIALLY ALIGNED ARRAY, MEANS FOR ACOUSTICALLY ISOLATING THE INTERIOR OF SAID ARRAY FROM ITS EXTERIOR, AN ACOUSTIC TRANSMITTING LIQUID PLACED WITHIN SAID AR-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |