Patent US2613572A successfully refreshed from Google Patents.
US3309467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching system with routing control
Assignee: AT&T Inc
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Filing: 1963-12-20
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Granted: 1967-03-14
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Expires: 1983-12-20
Abstract
No abstract record available.
Inventors
- 👤 John W Gorgas
- 👤 Eugene D Masucci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:32
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN COMBINATION IN A COMMUNICATION SWITCHING SYSTEM, A FIRST SWITCHING STATION, A SECOND SWITCHING STATION, SIGNALING ROUTES EXTENDING FROM SAID SWITCHING STATIONS, MEANS AT SAID FIRST STATION FOR TRANSMITTING OVER SAID SIGNALING ROUTES EXTENDING FROM SAID FIRST STATION DIFFERENT ALTERNATE ROUTE SIGNALS IN ADDITION TO CALL SELECTING SIGNALS, AND SWITCHING MEANS AT SAID FIRST STATION RESPONSIVE TO THE SELECTION OF ONE OF SAID ROUTES BETWEEN SAID STATIONS TO CONTROL THE CHARACTER OF ALTERNATE ROUTE SIGNALS TO DESIGNATE DIFFERENT ONES OF SAID ALTERNATE ROUTES AT SAID SECOND STATION WITH WHICH SAID SELECTED ROUTE BETWEEN SAID STATIONS MAY BE INTERCONNECTED AT SAID SECOND STATION, SAID SWITCHING MEANS INCLUDING MEANS FOR DETERMINING PARTICULAR ALTERNATE ROUTE SIGNALS INDEPENDENTLY OF THE AVAILABILITY OF SAID ALTERNATE ROUTES AT SAID SECOND STATION.
Claim 2
Dependent Claim
125 words
IN COMBINATION IN A COMMUNICATION SWITCHING SYSTEM, A FIRST SWITCHING STATION, A SECOND SWITCHING STATION, SIGNALING ROUTES EXTENDING FROM SAID SWITCHING STATIONS, MEANS AT SAID FIRST STATION FOR TRANSMITTING OVER SAID SIGNALING ROUTES EXTENDING FROM SAID FIRST STATION DIFFERENT ALTERNATE ROUTE SIGNALS IN ADDITION TO CALL SELECTING SIGNALS, AND SWITCHING MEANS AT SAID FIRST STATION RESPONSIVE TO THE SELECTION OF ONE OF SAID ROUTES BETWEEN SAID STATIONS TO CONTROL THE CHARACTER OF ALTERNATE ROUTE SIGNALS TO DESIGNATE DIFFERENT ONES OF SAID ALTERNATE ROUTES AT SAID SECOND STATION WITH WHICH SAID SELECTED ROUTE BETWEEN SAID STATIONS MAY BE INTERCONNECTED AT SAID SECOND STATION, SAID SWITCHING MEANS INCLUDING MEANS FOR DETERMINING PARTICULAR ALTERNATE ROUTE SIGNALS INDEPENDENTLY OF THE AVAILABILITY OF SAID ALTERNATE ROUTES AT SAID SECOND STATION.
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |