US3073914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic electromechanical transducer
Assignee: Clevite Corp
•
Filing: 1958-02-10
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Granted: 1963-01-15
•
Expires: 1978-02-10
Abstract
No abstract record available.
Inventors
- 👤 Carmen P Germano
- 👤 Melvin G Kullin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:06
CPC Classifications
H; H04; H04R; H04R17/00; H04R17/04; H04R17/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
AN ELECTROMECHANICAL TRANSDUCER ELEMENT COMPRISING: AN ELONGATED BODY OF POLARIXABLE FERROELECTRIC CERAMIC MATERIAL, CONTAINING A LONGITUDINAL CAVITY, SAID BODY AND CAVITY HAVING A COMMON LONGITUDINAL AXIS OF SYMMETRY, THE WALLS OF SAID BODY BEING POLARIZED IN THEIR THICKNESS DIRECTON AND WITH OPPOSITE POLARITY ON OPPOSITE SIDES OF A PLANE OF SYMMETRY THROUGH SAID LONGITUDINAL
Claim 2
Dependent Claim
54 words
AN ELECTROMECHANICAL TRANSDUCER ELEMENT COMPRISING: AN ELONGATED BODY OF POLARIXABLE FERROELECTRIC CERAMIC MATERIAL, CONTAINING A LONGITUDINAL CAVITY, SAID BODY AND CAVITY HAVING A COMMON LONGITUDINAL AXIS OF SYMMETRY, THE WALLS OF SAID BODY BEING POLARIZED IN THEIR THICKNESS DIRECTON AND WITH OPPOSITE POLARITY ON OPPOSITE SIDES OF A PLANE OF SYMMETRY THROUGH SAID LONGITUDINAL
References Cited (Backward Citations)
FR887596A
Cited
US2420864A
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US2518348A
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US2625663A
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Cited
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Cited
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Cited
US2944117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |