Patent US3192420A successfully refreshed from Google Patents.
US3192420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-mechanical transducers and the fabrication thereof
Assignee: Automation Industries Inc
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Filing: 1961-01-26
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Granted: 1965-06-29
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Expires: 1981-01-26
Abstract
No abstract record available.
Inventors
- 👤 John V Cowan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:40
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/18; G10K11/26; G10K11/32; B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0644; H; H10; H10N; H10N30/00; H10N30/01; H10N30/04; H10N30/045; Y; Y10; Y10T; Y10T29/00; Y10T29/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AN ELECTRO-MECHANICAL TRANSDUCER COMPRISING A PIEZO-ELECTRIC ELEMENT HAVING A PAIR A SUBSTANTIALLY PARALLEL SURFACES AND POLARIZED AT LEAST IN PART TO GENERATE MECHANICAL WAVE ENERGY ALONG AN AXIS DISPOSED AT AN ANGLE OTHER THAN NINETY DEGREES RELATIVE TO SAID SURFACES AT THE POINT OF ORIGIN OF SAID WAVE ENERGY.
Claim 2
Dependent Claim
49 words
AN ELECTRO-MECHANICAL TRANSDUCER COMPRISING A PIEZO-ELECTRIC ELEMENT HAVING A PAIR A SUBSTANTIALLY PARALLEL SURFACES AND POLARIZED AT LEAST IN PART TO GENERATE MECHANICAL WAVE ENERGY ALONG AN AXIS DISPOSED AT AN ANGLE OTHER THAN NINETY DEGREES RELATIVE TO SAID SURFACES AT THE POINT OF ORIGIN OF SAID WAVE ENERGY.
References Cited (Backward Citations)
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Cited
US2420652A
Cited
US2645727A
Cited
US2565159A
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US2834952A
Cited
US2888581A
Cited
US2939970A
Cited
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Cited
US2752662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |