US3342945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for controlling traffic in a switching network
Assignee: AT&T Inc
•
Filing: 1964-06-04
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Granted: 1967-09-19
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Expires: 1984-06-04
Abstract
No abstract record available.
Inventors
- 👤 Kenneth D Hopper
- 👤 Edward E Schwenzfeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:23
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0016
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A COMMUNICATION NETWORK, A PLURALITY OF SWITCHING OFFICES, A PLURALITY OF TRUNKS EXTENDING FROM SAID OFFICES, SWITCHING MEANS AT SAID OFFICES EFFECTIVE WHEN AVAILABLE IN RESPONSE TO CALL DIRECTIVE SIGNALS TRANSMITTED OVER SAID TRUNKS FOR INTERCONNECTING SAID TRUNKS FOR COMMUNICATION PURPOSES, MEANS FOR TRANSMITTING INDEPENDENTLY OF SAID CALL DIRECTIVE SIGNALS A LOAD INTERROGATING SIGNAL TO EACH SAID OFFICE AND FOR TRANSMITTING TO OTHER OFFICES INDICIA REPRESENTATIVE OF THE AVAILABILITY OF SAID SWITCHING MEANS AT SAID INTERROGATED OFFICES, AND MEANS AT SAID OTHER OFFICES FOR CONTROLLING SAID SWITCHING MEANS IN ACCORDANCE WITH THE INDICIA RECEIVED THEREAT.
Claim 2
Dependent Claim
96 words
IN A COMMUNICATION NETWORK, A PLURALITY OF SWITCHING OFFICES, A PLURALITY OF TRUNKS EXTENDING FROM SAID OFFICES, SWITCHING MEANS AT SAID OFFICES EFFECTIVE WHEN AVAILABLE IN RESPONSE TO CALL DIRECTIVE SIGNALS TRANSMITTED OVER SAID TRUNKS FOR INTERCONNECTING SAID TRUNKS FOR COMMUNICATION PURPOSES, MEANS FOR TRANSMITTING INDEPENDENTLY OF SAID CALL DIRECTIVE SIGNALS A LOAD INTERROGATING SIGNAL TO EACH SAID OFFICE AND FOR TRANSMITTING TO OTHER OFFICES INDICIA REPRESENTATIVE OF THE AVAILABILITY OF SAID SWITCHING MEANS AT SAID INTERROGATED OFFICES, AND MEANS AT SAID OTHER OFFICES FOR CONTROLLING SAID SWITCHING MEANS IN ACCORDANCE WITH THE INDICIA RECEIVED THEREAT.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |