US3089004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Repeaters for multi-channel telephone systems
Assignee: Submarine Cables Ltd
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Filing: 1959-11-27
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Granted: 1963-05-07
•
Expires: 1979-11-27
Abstract
No abstract record available.
Inventors
- 👤 Oswald Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:17
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/02; H04B3/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A TWO-DIRECTIONAL REPEATER FOR A CARRIER TELEPHONE SYSTEM INSERTED IN A CABLE HAVING AN INNER AND AN OUTER CONDUCTOR, IN WHICH SYSTEM DIFFERENT FREQUENCY BANDS ARE UTILIZED FOR TRANSMITTING SIGNALS IN OPPOSITE DIRECTION THROUGH THE REPEATER AND IN WHICH SIGNALS FROM BOTH DIRECTIONS ARE CAUSED TO TRAVERSE A SINGLE AMPLIFIER OF THE REPEATER IN THE SAME DIRECTION COMPRISING AT LEAST TWO PAIRS OF FREQUENCY SELECTIVELY FILTERS, A CIRCUIT COUPLED TO EACH SIDE OF THE REPEATER AND INCLUDING A SIGNAL FREQUENCY CHOKE, A SECOND HAVING TWO WINDINGS, AND A CONDENSER CONNECTED BETWEEN THE OUTER CONDUCTOR OF SAID CABLE AND ONE END OF A FIRST WINDING OF THE SECOND CHOKE, THE OTHER OF SAID FIRST WINDINGS BEING CONNECTED TO THE ONE TERMINAL OF ONE OF THE FILTERS, A SECOND CONDENSER, THE OTHER WINDING OF SAID SECOND CHOKE BEING CONNECTED BETWEEN SAID INNER CONDUCTOR AND ONE END OF SAID SECOND CONDENSER, THE OTHER END OF SAID SECOND CON-
Claim 2
Dependent Claim
155 words
A TWO-DIRECTIONAL REPEATER FOR A CARRIER TELEPHONE SYSTEM INSERTED IN A CABLE HAVING AN INNER AND AN OUTER CONDUCTOR, IN WHICH SYSTEM DIFFERENT FREQUENCY BANDS ARE UTILIZED FOR TRANSMITTING SIGNALS IN OPPOSITE DIRECTION THROUGH THE REPEATER AND IN WHICH SIGNALS FROM BOTH DIRECTIONS ARE CAUSED TO TRAVERSE A SINGLE AMPLIFIER OF THE REPEATER IN THE SAME DIRECTION COMPRISING AT LEAST TWO PAIRS OF FREQUENCY SELECTIVELY FILTERS, A CIRCUIT COUPLED TO EACH SIDE OF THE REPEATER AND INCLUDING A SIGNAL FREQUENCY CHOKE, A SECOND HAVING TWO WINDINGS, AND A CONDENSER CONNECTED BETWEEN THE OUTER CONDUCTOR OF SAID CABLE AND ONE END OF A FIRST WINDING OF THE SECOND CHOKE, THE OTHER OF SAID FIRST WINDINGS BEING CONNECTED TO THE ONE TERMINAL OF ONE OF THE FILTERS, A SECOND CONDENSER, THE OTHER WINDING OF SAID SECOND CHOKE BEING CONNECTED BETWEEN SAID INNER CONDUCTOR AND ONE END OF SAID SECOND CONDENSER, THE OTHER END OF SAID SECOND CON-
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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |