Patent US3111561A successfully refreshed from Google Patents.
US3111561A
Expired / Lapsed
US
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Intercept equipment
Assignee: AT&T Inc
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Filing: 1959-11-23
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Granted: 1963-11-19
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Expires: 1979-11-23
Abstract
No abstract record available.
Inventors
- 👤 Sanford F Dunning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:27
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/50; H04M3/51; H04M3/523; H04M3/487; H04M3/4872; H04M3/4874; H04M3/5166
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN A SWITCHING SYSTEM, A PLURALITY OF COMMUNICATION LINES, MEANS FOR APPLYING A CALLING SIGNAL TO ANY ONE OF SAID LINES TO EXTEND CALLS THERETO, ANNOUNCEMENT EQUIPMENT, A LINE CIRCUIT ASSOCIATED WITH EACH OF SAID LINES AND OPERATED BY A CALLING SIGNAL ON SAID ASSOCIATED LINE FOR CONNECTING THE CALLING LINE TO SAID EQUIPMENT TO RECEIVE A RECORDED ANNOUNCEMENT, A PLURALITY OF OPERATOR POSITIONS, SWITCH MEANS OPERATED BY SAID EQUIPMENT AT THE END OF SAID ANNOUNCEMENT FOR CONNECTING SAID CALLING LINE TO ANY OF SAID POSITIONS, AN ANSWERING AND RECORDING DEVICE ASSOCIATED WITH ONE OF SAID POSITIONS, AND MEANS FOR SELECTIVELY CONTROLLING THE OPERATION OF SAID SWITCH MEANS TO CONNECT SAID CALLING LINE TO SAID ONE POSITION AND SAID DEVICE FOR ANSWERING THE CALL EXTENDED TO SAID LINE AND THEREAFTER RECORDING A MESSAGE RECEIVED OVER SAID LINE.
Claim 2
Dependent Claim
137 words
IN A SWITCHING SYSTEM, A PLURALITY OF COMMUNICATION LINES, MEANS FOR APPLYING A CALLING SIGNAL TO ANY ONE OF SAID LINES TO EXTEND CALLS THERETO, ANNOUNCEMENT EQUIPMENT, A LINE CIRCUIT ASSOCIATED WITH EACH OF SAID LINES AND OPERATED BY A CALLING SIGNAL ON SAID ASSOCIATED LINE FOR CONNECTING THE CALLING LINE TO SAID EQUIPMENT TO RECEIVE A RECORDED ANNOUNCEMENT, A PLURALITY OF OPERATOR POSITIONS, SWITCH MEANS OPERATED BY SAID EQUIPMENT AT THE END OF SAID ANNOUNCEMENT FOR CONNECTING SAID CALLING LINE TO ANY OF SAID POSITIONS, AN ANSWERING AND RECORDING DEVICE ASSOCIATED WITH ONE OF SAID POSITIONS, AND MEANS FOR SELECTIVELY CONTROLLING THE OPERATION OF SAID SWITCH MEANS TO CONNECT SAID CALLING LINE TO SAID ONE POSITION AND SAID DEVICE FOR ANSWERING THE CALL EXTENDED TO SAID LINE AND THEREAFTER RECORDING A MESSAGE RECEIVED OVER SAID LINE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-18 | 1967-05-20 | 1967-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-18 | 1971-05-20 | 1971-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-18 | 1975-05-20 | 1975-11-19 | $7700.00 | Window Closed / Lapsed |