US3307120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic wave device
Assignee: AT&T Inc
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Filing: 1962-09-26
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Granted: 1967-02-28
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Expires: 1982-09-26
Abstract
No abstract record available.
Inventors
- 👤 Richard T Denton
- 👤 Edward G Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:33
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/125; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/0302; H01F1/0311; H01F1/0313; H01F1/0315; H03H9/13; H03H9/133; H03H9/30; H03H9/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
AN ULTRASONIC DELAY DEVICE COMPRISING A MEMBER HAVING A TRANSDUCER PORTION FORMED OF MAGNETIC MATERIAL AND A DELAY LINE PORTION FORMED OF NONMAGNETIC MATERIAL, MEANS INCLUDING MEANS FOR APPLYING A RADIO FREQUENCY MAGNETIC FIELD TO SAID MAGNETIC PORTION FOR GENERATING ULTRASONIC WAVE ENERGY AND MEANS FOR UTILIZING ULTRASONIC WAVE ENERGY CONNECTED TO SAID NONMAGNETIC PORTION, SAID MAGNETIC AND NONMAGNETIC MATERIALS BOTH BEING SINGLE CRYSTAL MATERIALS OF GIVEN CRYSTAL LATTICE STRUCTURE, THE JUNCTION BETWEEN SAID PORTIONS BEING FORMED AS A CONTINUOUS CRYSTAL LATTICE STRUCTURE EXTENDING FROM AND INCLUDING THE CRYSTAL LATTICE OF SAID MAGNETIC PORTION TO AND INCLUDING THE CRYSTAL LATTICE STRUCTURE OF SAID NONMAGNETIC PORTION SO THAT NO ACOUSTICAL DISCONTINUITY IS PRESENTED TO SAID WAVE ENERGY TRAVERSING SAID JUNCTION.
Claim 2
Dependent Claim
119 words
AN ULTRASONIC DELAY DEVICE COMPRISING A MEMBER HAVING A TRANSDUCER PORTION FORMED OF MAGNETIC MATERIAL AND A DELAY LINE PORTION FORMED OF NONMAGNETIC MATERIAL, MEANS INCLUDING MEANS FOR APPLYING A RADIO FREQUENCY MAGNETIC FIELD TO SAID MAGNETIC PORTION FOR GENERATING ULTRASONIC WAVE ENERGY AND MEANS FOR UTILIZING ULTRASONIC WAVE ENERGY CONNECTED TO SAID NONMAGNETIC PORTION, SAID MAGNETIC AND NONMAGNETIC MATERIALS BOTH BEING SINGLE CRYSTAL MATERIALS OF GIVEN CRYSTAL LATTICE STRUCTURE, THE JUNCTION BETWEEN SAID PORTIONS BEING FORMED AS A CONTINUOUS CRYSTAL LATTICE STRUCTURE EXTENDING FROM AND INCLUDING THE CRYSTAL LATTICE OF SAID MAGNETIC PORTION TO AND INCLUDING THE CRYSTAL LATTICE STRUCTURE OF SAID NONMAGNETIC PORTION SO THAT NO ACOUSTICAL DISCONTINUITY IS PRESENTED TO SAID WAVE ENERGY TRAVERSING SAID JUNCTION.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |