Patent US3215788A successfully refreshed from Google Patents.
US3215788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voice-frequency amplifiers
Assignee: Alcatel CIT SA
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Filing: 1959-10-29
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Granted: 1965-11-02
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Expires: 1979-10-29
Abstract
No abstract record available.
Inventors
- 👤 Oswald Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:38
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/40; H04B1/54; H04B1/58; H04B1/581; H04B3/00; H04B3/02; H04B3/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
231 words
IN COMBINATION, A FIRST SIGNAL LINE SECTION HAVING TWO TERMINALS, A SECOND SIGNAL LINE SECTION HAVING TWO TERMINALS AND A REPEATER CIRCUIT CONNECTION WHICH ENSURES THE GALVANIC CONTINUITY BETWEEN THE TWO SIGNAL LINES AND THE DIRECT TRANSMISISION OF THE TOTALITY OF THE BAND OF FREQUENCIES SENT OVER AT LEAST ONE OF SAID SIGNAL LINES, COMPRISING: HYBRID COIL MEANS HAVING A PLURALITY OF WINDING MEANS, EACH OF SAID WINDING MEANS HAVING AN INPUT TERMINAL, AN OUTPUT TERMINAL AND A MID-TAP, AMPLIFYING MEANS HAVING A FIRST AND A SECOND PAIR OF TERMINALS, FIRST CONNECTING MEANS OPERATIVELY CONNECTING THE TERMINALS OF THE FIRST SIGNAL LINE, RESPECTIVELY, TO THE INPUT TERMINALS OF A FIRST AND A SECOND OF SAID WINDING MEANS, SECOND CONNECTING MEANS OPERATIVELY CONNECTING THE TERMINALS OF THE SECOND SIGNAL LINE, RESPECTIVELY, TO THE OUTPUT TERMINALS OF SAID FIRST AND SAID SECOND WINDING MEANS, THIRD CONNECTING MEANS OPERATIVELY CONNECTING THE INPUT TERMINALS OF A THIRD WINDING MEANS AND A FOURTH WINDING MEANS, RESPECTIVELY, TO THE TERMINALS OF THE FIRST PAIR OF THE TERMINALS OF THE AMPLIFYING MEANS, FOURTH CONNECTING MEANS OPERATIVELY CONNECTING THE OUTPUT TERMINALS OF SAID THIRD AND FOURTH WINDING MEANS, RESPECTIVELY, TO THE TERMINALS OF THE SECOND PAIR OF THE TERMINALS OF THE AMPLIFYING MEANS, AND FURTHER CONNECTING MEANS OPERATIVELY CONNECTING THE MID-TAP OF THE FIRST AND SECOND WINDING MEANS, RESPECTIVELY, TO THE MID-TAPS OF THE THIRD AND FOURTH WINDING MEANS.
Claim 2
Dependent Claim
231 words
IN COMBINATION, A FIRST SIGNAL LINE SECTION HAVING TWO TERMINALS, A SECOND SIGNAL LINE SECTION HAVING TWO TERMINALS AND A REPEATER CIRCUIT CONNECTION WHICH ENSURES THE GALVANIC CONTINUITY BETWEEN THE TWO SIGNAL LINES AND THE DIRECT TRANSMISISION OF THE TOTALITY OF THE BAND OF FREQUENCIES SENT OVER AT LEAST ONE OF SAID SIGNAL LINES, COMPRISING: HYBRID COIL MEANS HAVING A PLURALITY OF WINDING MEANS, EACH OF SAID WINDING MEANS HAVING AN INPUT TERMINAL, AN OUTPUT TERMINAL AND A MID-TAP, AMPLIFYING MEANS HAVING A FIRST AND A SECOND PAIR OF TERMINALS, FIRST CONNECTING MEANS OPERATIVELY CONNECTING THE TERMINALS OF THE FIRST SIGNAL LINE, RESPECTIVELY, TO THE INPUT TERMINALS OF A FIRST AND A SECOND OF SAID WINDING MEANS, SECOND CONNECTING MEANS OPERATIVELY CONNECTING THE TERMINALS OF THE SECOND SIGNAL LINE, RESPECTIVELY, TO THE OUTPUT TERMINALS OF SAID FIRST AND SAID SECOND WINDING MEANS, THIRD CONNECTING MEANS OPERATIVELY CONNECTING THE INPUT TERMINALS OF A THIRD WINDING MEANS AND A FOURTH WINDING MEANS, RESPECTIVELY, TO THE TERMINALS OF THE FIRST PAIR OF THE TERMINALS OF THE AMPLIFYING MEANS, FOURTH CONNECTING MEANS OPERATIVELY CONNECTING THE OUTPUT TERMINALS OF SAID THIRD AND FOURTH WINDING MEANS, RESPECTIVELY, TO THE TERMINALS OF THE SECOND PAIR OF THE TERMINALS OF THE AMPLIFYING MEANS, AND FURTHER CONNECTING MEANS OPERATIVELY CONNECTING THE MID-TAP OF THE FIRST AND SECOND WINDING MEANS, RESPECTIVELY, TO THE MID-TAPS OF THE THIRD AND FOURTH WINDING MEANS.
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |