Patent US3259858A successfully refreshed from Google Patents.
US3259858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nondispersive ultrasonic delay line using delay medium consisting of cubic symmetry crystal having particular orientation
Assignee: AT&T Inc
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Filing: 1962-04-27
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Granted: 1966-07-05
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Expires: 1982-04-27
Abstract
No abstract record available.
Inventors
- 👤 Allen H Meitzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:32
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/30; H03H9/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A DELAY LINE COMPRISING A THIN, ELONGATED PLATE, WITH A WIDTH AT LEAST TEN TIMES THE THICKNESS, AND AN ELECTROMECHANICAL TRANSDUCER ASSOCIATED WITH ONE END THEREOF, THE PLATE BEING CUT FROM A SINGLE CRYSTAL HAVING A CUBIC SYSTEM OF SYMMETRY AND THREE MUTUALLY PERPENDICULAR CRYSTALLOGRAPHIC AXES X, Y, AND Z, THE PLATE HAVING A LENGTH DIMENSION WITH COSINES (1/$2, 1/$2, 0) WITH RESPECT TO X, Y, AND Z AND A THICKNESS DIMENSION WITH DIRECTION COSINES (-1/$2, 1/$2, 0) WITH RESPECT TO X, Y, AND Z.
Claim 2
Dependent Claim
85 words
A DELAY LINE COMPRISING A THIN, ELONGATED PLATE, WITH A WIDTH AT LEAST TEN TIMES THE THICKNESS, AND AN ELECTROMECHANICAL TRANSDUCER ASSOCIATED WITH ONE END THEREOF, THE PLATE BEING CUT FROM A SINGLE CRYSTAL HAVING A CUBIC SYSTEM OF SYMMETRY AND THREE MUTUALLY PERPENDICULAR CRYSTALLOGRAPHIC AXES X, Y, AND Z, THE PLATE HAVING A LENGTH DIMENSION WITH COSINES (1/$2, 1/$2, 0) WITH RESPECT TO X, Y, AND Z AND A THICKNESS DIMENSION WITH DIRECTION COSINES (-1/$2, 1/$2, 0) WITH RESPECT TO X, Y, AND Z.
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) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |