US3328535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Class of service communication switching system
Assignee: Automatic Electric Laboratories Inc
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Filing: 1966-12-01
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Granted: 1967-06-27
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Expires: 1986-12-01
Abstract
No abstract record available.
Inventors
- 👤 Frank B Sikorski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:12
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/42; H04Q3/54; H04Q3/545
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN A COMMUNICATION SWITCHING SYSTEM HAVING A SWITCHING NETWORK FOR ESTABLISHING CONNECTIONS BETWEEN ANY ONE OF A PLURALITY OF LINE CIRCUITS CONNECTED TO A LINE SIDE OF THE NETWORK AND ANY ONE OF A PLURALITY OF ORIGINATING TERMINALS ON THE OTHER SIDE OF THE NETWORK, CONTROL MEANS WHICH RESPONSIVE TO A CALL-REQUEST SIGNAL CONDITION AT ONE OF SAID LINE CIRCUITS CONTROLS THE FINDING OF A PATH AND THE ESTABLISHMENT OF A CONNECTION THROUGH SAID NETWORK FROM SAID LINE CIRCUIT TO ONE OF THE ORIGINATING TERMINALS;
Claim 2
Dependent Claim
85 words
IN A COMMUNICATION SWITCHING SYSTEM HAVING A SWITCHING NETWORK FOR ESTABLISHING CONNECTIONS BETWEEN ANY ONE OF A PLURALITY OF LINE CIRCUITS CONNECTED TO A LINE SIDE OF THE NETWORK AND ANY ONE OF A PLURALITY OF ORIGINATING TERMINALS ON THE OTHER SIDE OF THE NETWORK, CONTROL MEANS WHICH RESPONSIVE TO A CALL-REQUEST SIGNAL CONDITION AT ONE OF SAID LINE CIRCUITS CONTROLS THE FINDING OF A PATH AND THE ESTABLISHMENT OF A CONNECTION THROUGH SAID NETWORK FROM SAID LINE CIRCUIT TO ONE OF THE ORIGINATING TERMINALS;
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |