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Patent US3401357A successfully refreshed from Google Patents.
US3401357A
Expired / Lapsed
US
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Electromagnetic wave amplifier oscillator and modulator
Assignee: AT&T Inc
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Filing: 1965-08-11
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Granted: 1968-09-10
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Expires: 1985-08-11
Abstract
No abstract record available.
Inventors
- 👤 Asaro Lucian A D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:03
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/015; H; H03; H03B; H03B17/00; H03C; H03C1/00; H03C1/34; H04; H04B; H04B10/00; H04B10/50; H04B10/501; H04B10/503; H04B10/505; H04B10/5057; H04B10/50572; H04B10/50577
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A TRAVELING WAVE MODULATOR COMPRISING: A PLURALITY OF SPATIALLY DISTRIBUTED JUNCTION DIODES; MEANS FOR PROJECTING A BEAM OF OPTICAL WAVE ENERGY THROUGH SAID DIODES IN A DIRECTION ALONG SAID JUNCTIONS, SAID WAVE ENERGY PROPAGATING THEREALONG AT A GIVEN VELOCITY; AND MEANS FOR COUPLING A PROPAGATING MODULATING SIGNAL TO SAID DIODES WHERE THE VELOCITY OF PROPAGATION OF SAID SIGNAL IN THE DIRECTION OF SAID OPTICAL BEAM IS SUBSTANTIALLY EQUAL TO SAID GIVE VELOCITY.
Claim 2
Dependent Claim
84 words
IN COMBINATION, A LASER FOR PRODUCING AN OPTICAL WAVE OF A PRESCRIBED FREQUENCY; A MODULATOR SUPPLIED WITH SAID OPTICAL WAVE FOR IMPRESSING THEREON A SIGNAL WAVE; A DEMODULATOR WHICH IS IN PROXIMATE RELATIONSHIP WITH THE MODULATOR AND TO WHICH IS APPLIED DIRECTLY THE MODULATED SIGNAL WAVE FOR EXTRACTING THEREFROM THE SIGNAL WAVE; THE PRODUCT OF THE MODULATOR EFFICIENCY AND THE DEMODULATOR EFFICIENCY BEING GREATER THAN UNITY WHEREBY THE INTENSITY OF THE EXTRACTED SIGNAL WAVE IS LARGER THAN THE INTENSITY OF THE IMPRESSED SIGNAL WAVE.
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) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |