US3319010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching arrangement for the trans-mission and re-transmission of signals over telephone lines
Assignee: Siemens and Halske AG
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Filing: 1964-04-22
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Granted: 1967-05-09
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Expires: 1984-04-22
Abstract
No abstract record available.
Inventors
- 👤 Franchi Bruno
- 👤 Fath Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:39
CPC Classifications
H; H04; H04Q; H04Q3/00; H04M; H04M11/00; H04M11/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A SWITCHING ARRANGEMENT FOR THE TRANSMISSION OF SIGNALS OVER MULTI-WIRE COMMUNICATION LINES BETWEEN A TRANSMITTING STATION AND A RECEIVING STATION COMPRISING MEANS FOR GENERATING AN ALTERNATING CURRENT, OPERATIVELY CONNECTABLE BETWEEN THE INDIVIDUAL LINE CONDUCTORS AND A COMMON RETURN CONDUCTOR SUCH AS GROUND, MEANS AT THE TRANSMITTING STATION FOR SELECTIVELY SWITCHING HALF WAVES FROM SAID GENERATOR THROUGH RECTIFIERS IN DIFFERENT COMBINATIONS, AND MEANS AT THE RECEIVING STATION FOR EVALUATING SUCH HALF WAVES, SAID EVALUATION MEANS COMPRISING RECEIVING SWITCHING MEMBERS WHICH ARE DIRECTIONALLY SENSTIVE AND ALLOCATED TO THE INDIVIDUAL CONDUCTORS IN PAIRS, A CONTROL SWITCHING MEMBER ALLOCATED TO THE RECEIVING SWITCHING MEMBERS OF ONE DIRECTIONAL SENSITIVITY, AND A CONTROL SWITCHING MEMBER ALLOCATED TO THE RECEIVING SWITCHING MEMBERS OF THE OTHER DIRECTIONAL SENSITIVITY, THE RESPECTIVE CONTROL SWITCHING MEMBERS HAVING A DIRECTION
Claim 2
Dependent Claim
128 words
A SWITCHING ARRANGEMENT FOR THE TRANSMISSION OF SIGNALS OVER MULTI-WIRE COMMUNICATION LINES BETWEEN A TRANSMITTING STATION AND A RECEIVING STATION COMPRISING MEANS FOR GENERATING AN ALTERNATING CURRENT, OPERATIVELY CONNECTABLE BETWEEN THE INDIVIDUAL LINE CONDUCTORS AND A COMMON RETURN CONDUCTOR SUCH AS GROUND, MEANS AT THE TRANSMITTING STATION FOR SELECTIVELY SWITCHING HALF WAVES FROM SAID GENERATOR THROUGH RECTIFIERS IN DIFFERENT COMBINATIONS, AND MEANS AT THE RECEIVING STATION FOR EVALUATING SUCH HALF WAVES, SAID EVALUATION MEANS COMPRISING RECEIVING SWITCHING MEMBERS WHICH ARE DIRECTIONALLY SENSTIVE AND ALLOCATED TO THE INDIVIDUAL CONDUCTORS IN PAIRS, A CONTROL SWITCHING MEMBER ALLOCATED TO THE RECEIVING SWITCHING MEMBERS OF ONE DIRECTIONAL SENSITIVITY, AND A CONTROL SWITCHING MEMBER ALLOCATED TO THE RECEIVING SWITCHING MEMBERS OF THE OTHER DIRECTIONAL SENSITIVITY, THE RESPECTIVE CONTROL SWITCHING MEMBERS HAVING A DIRECTION
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |