Patent US2143201A successfully refreshed from Google Patents.
Patent US3145355A successfully refreshed from Google Patents.
US3145355A
Expired / Lapsed
US
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Variable ultrasonic delay line
Assignee: Laboratory For Electronics Inc
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Filing: 1961-09-20
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Granted: 1964-08-18
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Expires: 1981-09-20
Abstract
No abstract record available.
Inventors
- 👤 Holden P Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:43
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/30; H03H9/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A SOLID VARIABLE ULTRASONIC DELAY LINE COMPRISING AN ACOUSTIC TRANSMITTING MEDIUM CONSISTING OF A FIRST AND A SECOND GENERALLY WEDGE-SHAPED ELEMENT DISPOSED IN INTIMATE CONTACT WITH EACH OTHER TO FORM A PARALLELELPIPED HAVING AN INCLINED INTERFACE FORMED THEREIN AND A PAIR OF PARALLEL OPPOSING SURFACES, THE VELOCITY OF PROPAGATION OF ACOUSTIC ENERGY IN THE FIRST WEDGE-SHAPED ELEMENT BEING DIFFERENT FROM THE VELOCITY OF PROPAGATION OF ACOUSTIC ENERGY IN THE SECOND WEDGE-SHAPED ELEMENT, A TRANSMITTING AND A RECEIVING ACOUSTIC TRANSDUCER, AND MEANS FOR SLIDABLY MOUNTING THE TRANSMITTING AND RECEIVING ACOUSTIC
Claim 2
Dependent Claim
89 words
A SOLID VARIABLE ULTRASONIC DELAY LINE COMPRISING AN ACOUSTIC TRANSMITTING MEDIUM CONSISTING OF A FIRST AND A SECOND GENERALLY WEDGE-SHAPED ELEMENT DISPOSED IN INTIMATE CONTACT WITH EACH OTHER TO FORM A PARALLELELPIPED HAVING AN INCLINED INTERFACE FORMED THEREIN AND A PAIR OF PARALLEL OPPOSING SURFACES, THE VELOCITY OF PROPAGATION OF ACOUSTIC ENERGY IN THE FIRST WEDGE-SHAPED ELEMENT BEING DIFFERENT FROM THE VELOCITY OF PROPAGATION OF ACOUSTIC ENERGY IN THE SECOND WEDGE-SHAPED ELEMENT, A TRANSMITTING AND A RECEIVING ACOUSTIC TRANSDUCER, AND MEANS FOR SLIDABLY MOUNTING THE TRANSMITTING AND RECEIVING ACOUSTIC
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |