US3264415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching system for outpulsing on pbx trunks
Assignee: AT&T Inc
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Filing: 1962-11-28
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Granted: 1966-08-02
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Expires: 1982-11-28
Abstract
No abstract record available.
Inventors
- 👤 Thomas V Burns
- 👤 Edson L Erwin
- 👤 George J Krall
- 👤 Eugene D Masucci
- 👤 Charles J Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:21
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN COMBINATION IN A TELEPHONE SWITCHING SYSTEM, A SWITCHING NETWORK COMPRISING A PLURALITY OF SUBSCRIBERS'' LINE TERMINALS AND ALSO A DIFFERENT PLURALITY OF TRUNK TERMINALS, CHARACTERIZED IN THAT MEANS ARE PROVIDED FOR TRANSMITTING CALLING SIGNALS OVER OUTGOING LINES FROM SELECTED ONES OF SAID SUBSCRIBERS'' LINE TERMINALS INCLUDING OUTPULSING SENDERS AND MEANS FOR SELECTIVELY CONNECTING SAID OUTPULSING SENDERS TO THE SELECTED ONES OF THE SUBSCRIBERS'' LINE TERMINALS, AND ALSO INCLUDING TRANSLATING MEANS RESPONSIVE TO THE LAST PORTION OF THE CALLING SIGNALS FOR CONDITIONING SAID SENDER TO SELECTIVELY TRANSMIT CALLING SIGNAL TO SAID SELECTED SUBSCRIBERS'' LINE TERMINALS.
Claim 2
Dependent Claim
95 words
IN COMBINATION IN A TELEPHONE SWITCHING SYSTEM, A SWITCHING NETWORK COMPRISING A PLURALITY OF SUBSCRIBERS'' LINE TERMINALS AND ALSO A DIFFERENT PLURALITY OF TRUNK TERMINALS, CHARACTERIZED IN THAT MEANS ARE PROVIDED FOR TRANSMITTING CALLING SIGNALS OVER OUTGOING LINES FROM SELECTED ONES OF SAID SUBSCRIBERS'' LINE TERMINALS INCLUDING OUTPULSING SENDERS AND MEANS FOR SELECTIVELY CONNECTING SAID OUTPULSING SENDERS TO THE SELECTED ONES OF THE SUBSCRIBERS'' LINE TERMINALS, AND ALSO INCLUDING TRANSLATING MEANS RESPONSIVE TO THE LAST PORTION OF THE CALLING SIGNALS FOR CONDITIONING SAID SENDER TO SELECTIVELY TRANSMIT CALLING SIGNAL TO SAID SELECTED SUBSCRIBERS'' LINE TERMINALS.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |