Patent US3078403A successfully refreshed from Google Patents.
US3078403A
Expired / Lapsed
US
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Ultrasonic transducer
Assignee: Individual
•
Filing: 1956-02-24
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Granted: 1963-02-19
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Expires: 1976-02-24
Abstract
No abstract record available.
Inventors
- 👤 Edson R Wolcott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:42
CPC Classifications
G; G10; G10K; G10K9/00; G10K9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
AN ULTRASONIC TRANSDUCER FOR ELECTRICALLY PRODUCING MECHANICAL PRESSURE WAVES WITHIN A RANGE OF FREQUENCY FROM THE HIGHER AUDIO FREQUENCIES TO THE LOWER RADIO FREQUENCIES COMPRISING MEANS FOR PROVIDING AN ELECTRIC OSCILLATOR CONTROLLED HIGH VOLTAGE A.C. POTENTIAL IN THE ORDER OF 1,000,000 VOLTS HAVING A PREDETERMINED VARIABLE FREQUENCY WITHIN SAID RANGE OF FREQUENCIES, CAPACITIVE ELECTRODES HAVING AN IONIZABLE DIELECTRIC DEVOID OF ANY MAGNETO STRICTIVE MATERIAL THEREBETWEEN, MEANS FOR IONIZING SAID DIELECTRIC, AND MEANS FOR APPLYING SAID A.C. POTENTIAL TO SAID ELECTRODES ACROSS SAID DIELECTRIC INDEPENDENT OF ANY PIEZO-ELECTRIC UNIT.
Claim 2
Dependent Claim
88 words
AN ULTRASONIC TRANSDUCER FOR ELECTRICALLY PRODUCING MECHANICAL PRESSURE WAVES WITHIN A RANGE OF FREQUENCY FROM THE HIGHER AUDIO FREQUENCIES TO THE LOWER RADIO FREQUENCIES COMPRISING MEANS FOR PROVIDING AN ELECTRIC OSCILLATOR CONTROLLED HIGH VOLTAGE A.C. POTENTIAL IN THE ORDER OF 1,000,000 VOLTS HAVING A PREDETERMINED VARIABLE FREQUENCY WITHIN SAID RANGE OF FREQUENCIES, CAPACITIVE ELECTRODES HAVING AN IONIZABLE DIELECTRIC DEVOID OF ANY MAGNETO STRICTIVE MATERIAL THEREBETWEEN, MEANS FOR IONIZING SAID DIELECTRIC, AND MEANS FOR APPLYING SAID A.C. POTENTIAL TO SAID ELECTRODES ACROSS SAID DIELECTRIC INDEPENDENT OF ANY PIEZO-ELECTRIC UNIT.
References Cited (Backward Citations)
GB191004967A
Cited
US1152697A
Cited
US1461056A
Cited
US1678182A
Cited
US1809713A
Cited
US1644387A
Cited
US1839130A
Cited
US1901202A
Cited
US2163650A
Cited
US2167536A
Cited
US2353920A
Cited
US2403990A
Cited
US2728867A
Cited
US2592703A
Cited
US2559227A
Cited
US2685025A
Cited
US2651027A
Cited
US2616223A
Cited
US2708485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |