Patent US3346816A successfully refreshed from Google Patents.
US3346816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical energy converter
Assignee: International Standard Electric Corp
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Filing: 1964-04-17
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Granted: 1967-10-10
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Expires: 1984-04-17
Abstract
No abstract record available.
Inventors
- 👤 Midford Thomas Arthur
- 👤 Richard H Pantell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:37
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/04; H03F3/08; A; A61; A61C; A61C13/00; A61C13/225; A61C13/24; G; G02; G02F; G02F2/00; H03D; H03D9/00; H10; H10F; H10F99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
APPARATUS FOR THE DETECTION AND AMPLIFICATION OF A SIGNAL MODULATING AN OPTICAL FREQUENCY CARRIER WAVE INCLUDING A SIGNAL CRYSTAL BODY OF PIEZOELECTRIC SEMICONDUCTOR MATERIAL HAVING AT LEAST ONE PAIR OF PARALLEL FACES, MEANS FOR APPLYING A DIRECT CURRENT BIAS POTENTIAL BETWEEN THE TWO FACES, MEANS FOR COUPLING TO ONE OF THE FACES OF THE BODY OF PIEZOELECTRIC SEMICONDUCTOR MATERIAL THE MODULATED OPTICAL CARRIER WAVE, WHEREBY THE INTERACTION BETWEEN THE WAVE AND THE BODY OF PIEZOELECTRIC SEMICONDUCTOR MATERIAL PRODUCES WITHIN THE MATERIAL A PHOTOCURRENT CORRESPONDING TO THE MODULATING SIGNAL AND AN ACOUSTICALLY RESPONSIVE OUTPUT TRANSDUCER COUPLED TO THE BODY OF PIEZOELECTRIC SEMICONDUCTOR MATERIAL TO PRODUCE AN ACOUSTIC OUTPUT CORRESPONDING TO THE MODULATING SIGNAL.
Claim 2
Dependent Claim
112 words
APPARATUS FOR THE DETECTION AND AMPLIFICATION OF A SIGNAL MODULATING AN OPTICAL FREQUENCY CARRIER WAVE INCLUDING A SIGNAL CRYSTAL BODY OF PIEZOELECTRIC SEMICONDUCTOR MATERIAL HAVING AT LEAST ONE PAIR OF PARALLEL FACES, MEANS FOR APPLYING A DIRECT CURRENT BIAS POTENTIAL BETWEEN THE TWO FACES, MEANS FOR COUPLING TO ONE OF THE FACES OF THE BODY OF PIEZOELECTRIC SEMICONDUCTOR MATERIAL THE MODULATED OPTICAL CARRIER WAVE, WHEREBY THE INTERACTION BETWEEN THE WAVE AND THE BODY OF PIEZOELECTRIC SEMICONDUCTOR MATERIAL PRODUCES WITHIN THE MATERIAL A PHOTOCURRENT CORRESPONDING TO THE MODULATING SIGNAL AND AN ACOUSTICALLY RESPONSIVE OUTPUT TRANSDUCER COUPLED TO THE BODY OF PIEZOELECTRIC SEMICONDUCTOR MATERIAL TO PRODUCE AN ACOUSTIC OUTPUT CORRESPONDING TO THE MODULATING SIGNAL.
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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |