Patent US1975303A successfully refreshed from Google Patents.
Patent US3310633A successfully refreshed from Google Patents.
US3310633A
Expired / Lapsed
US
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Arrangement for selecting transmission paths in multi-stage switching grids
Assignee: International Standard Electric Corp
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Filing: 1963-08-06
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Granted: 1967-03-21
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Expires: 1983-08-06
Abstract
No abstract record available.
Inventors
- 👤 Hilmar Schoenemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:14
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0008; H04Q3/0012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
A GUIDE WIRE SWITCHING SYSTEM COMPRISING A PLURALITY OF CASCADED SWITCHING STAGES, EACH STAGE INCLUDING A NUMBER OF SWITCHING BLOCKS INCORPORATING SWITCHING POINTS, MEANS COMPRISING A PLURALITY OF GUIDE WIRES FOR CONTROLLING THE OPERATION OF THE SWITCHING POINTS IN SAID SYSTEM, MEANS RESPONSIVE TO AN APPLICATION OF AN OFFERING SIGNAL TO SAID GUIDE WIRES ON ONE SIDE OF SAID SYSTEM FOR TRANSMITTING A FAN-OUT OF SIGNALS OVER A PLURALITY OF SAID GUIDE WIRES AND THROUGH SAID SWITCHING POINTS TOWARD THE OPPOSITE SIDE OF SAID SYSTEM, MEANS FOR RECEIVING A CATCHING SIGNAL ON A GUIDE WIRE ON THE OPPOSITE SIDE OF SAID SYSTEM, SELECTING MEANS INCLUDING AND FUNCTION CIRCUITS RESPONSIVE TO THE SIMULTANEOUS PRESENCE OF A FAN-OUT SIGNAL AND THE CATCHING SIGNAL AT A SWITCHING POINT FOR SELECTING A PATH THROUGH THE ASSOCIATED SWITCHING BLOCK, SAID SELECTING MEANS INCLUDING MEANS WHEREBY SAID CATCHING SIGNAL IS RETURNED OVER PARALLEL PATHS VIA SAID GUIDE WIRES, AND SAID SELECTING MEANS INCLUDING MEANS AT EACH OF SAID STAGES FOR SELECTING A SINGLE ONE OF THE SWITCHING BLOCKS IN THAT STAGE TO RETURN THE CATCHING SIGNAL TO THE NEXT PRECEDING STAGE.
Claim 2
Dependent Claim
185 words
A GUIDE WIRE SWITCHING SYSTEM COMPRISING A PLURALITY OF CASCADED SWITCHING STAGES, EACH STAGE INCLUDING A NUMBER OF SWITCHING BLOCKS INCORPORATING SWITCHING POINTS, MEANS COMPRISING A PLURALITY OF GUIDE WIRES FOR CONTROLLING THE OPERATION OF THE SWITCHING POINTS IN SAID SYSTEM, MEANS RESPONSIVE TO AN APPLICATION OF AN OFFERING SIGNAL TO SAID GUIDE WIRES ON ONE SIDE OF SAID SYSTEM FOR TRANSMITTING A FAN-OUT OF SIGNALS OVER A PLURALITY OF SAID GUIDE WIRES AND THROUGH SAID SWITCHING POINTS TOWARD THE OPPOSITE SIDE OF SAID SYSTEM, MEANS FOR RECEIVING A CATCHING SIGNAL ON A GUIDE WIRE ON THE OPPOSITE SIDE OF SAID SYSTEM, SELECTING MEANS INCLUDING AND FUNCTION CIRCUITS RESPONSIVE TO THE SIMULTANEOUS PRESENCE OF A FAN-OUT SIGNAL AND THE CATCHING SIGNAL AT A SWITCHING POINT FOR SELECTING A PATH THROUGH THE ASSOCIATED SWITCHING BLOCK, SAID SELECTING MEANS INCLUDING MEANS WHEREBY SAID CATCHING SIGNAL IS RETURNED OVER PARALLEL PATHS VIA SAID GUIDE WIRES, AND SAID SELECTING MEANS INCLUDING MEANS AT EACH OF SAID STAGES FOR SELECTING A SINGLE ONE OF THE SWITCHING BLOCKS IN THAT STAGE TO RETURN THE CATCHING SIGNAL TO THE NEXT PRECEDING STAGE.
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) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |