US3098978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonreciprocal wave translating network
Assignee: AT&T Inc
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Filing: 1959-10-30
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Granted: 1963-07-23
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Expires: 1979-10-30
Abstract
No abstract record available.
Inventors
- 👤 Jack M Sipress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:15
CPC Classifications
H; H03; H03H; H03H11/00; H03H11/02; H03H11/40; H03H11/42
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
153 words
A NONRECIPROCAL SIGNAL TRANSLATING NETWORK COMPRISING TWO SIGNAL PATHS, THE FIRST OF SAID PATHS COMRISING, IN CASCADE, A FIRST CURRENT AMPLIFIER AND A FIRST CURRENT-TOVOLTAGE TRANSDUCER, THE SECOND OF SAID PATHS COMPRISING A SECOND CURRENT AMPLIFIER, A SECOND CURENT-TO-VOLTAGE TRANSDUCER AND A VOLTAGE AMPLIFIER, SAID AMPLIFIERS AND SAID TRANSDUCERS EACH HAVING A PAIR OF INPUT TERMINALS AND PAIR OF OUTPUT TERMINALS, ONE OF SAID OUTPUT TERMINALS OF SAID VOLTAGE AMPLIFIER BEING CONNECTED TO ONE OF THE INPUT TERMINALS OF SAID FIRST CURRENT AMPLIFIER, MEANS FOR CONNECTING AN OUTPUT CIRCUIT BETWEEN THE OTHER OUTPUT TERMINAL OF SAID VOLTAGE AMPLIFIER AND THE OUTER INPUT TERMINAL OF SAID FIRST CURRENT AMPLIFIER, ONE OF THE OUTPUT TRERMINALS OF SAID FIRST TRANSDUCER BEING CONNECTED TO SAID ONE OUTPUT TERMINAL OF SAID VOLTAGE AMPLIFIER, AND MEANS FOR CONNECTING AN INPUT CIRCUIT BETWEEN THE OTHER OUTPUT TERMINAL OF SAID FIRST TRANSDUCER AND AN INPUT TERMINAL OF SAID SECOND CURRENT AMPLIFIER.
References Cited (Backward Citations)
US2273997A
Cited
US2885492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |