US3141931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone answering equipment
Assignee: AT&T Inc
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Filing: 1962-01-19
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Granted: 1964-07-21
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Expires: 1982-01-19
Abstract
No abstract record available.
Inventors
- 👤 Zarouni Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:32
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/50; H04M3/53; H04M3/533
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A TELEPHONE SYSTEM COMPRISING A SWITCHING OFFICE, A PLURALITY OF TELEPHONE LINES CONNECTED TO SAID OFFICE, MEANS RESPONSIVE TO ANSWERING SERVICE SIGNALS RECEIVED FROM A CALLING ONE OF SAID LINES FOR ASSURING THAT THE CALLING LINE IS ENTITLED TO THE SERVICE, ANSWERING EQUIPMENT AT SAID OFFICE, MEANS ACTUATED BY SAID ASSURING MEANS FOR CONDITIONING SAID EQUIPMENT TO SERVE AN ENTITLED CALLING LINE, SAID ANSWERING EQUIPMENT INCLUDING MEANS ACTIVATED BY CONTROL SIGNALS FROM SAID ENTITLED LINE FOR DETECTING SUBSEQUENT INCOMING CALLS TO SAID ENTITLED LINE, MEANS CONTROLLED BY SAID DETECTING MEANS FOR SUPPLYING A RECORDED ANNOUNCEMENT TO SAID ENTITLED LINE TO ANSWER SAID CALLS, MEANS OPERATIVE EACH TIME AFTER SAID ANNOUNCEMENT IS SUPPLIED TO SAID LINE FOR RECORDING MESSAGES RECEIVED FROM OTHER LINES, AND MEANS RESPONSIVE TO CODED SIGNALS FROM ANY OF SAID LINES FOR SUPPLYING THE RECORDED MESSAGES TO SAID LAST-MENTIONED LINES.
Claim 2
Dependent Claim
142 words
A TELEPHONE SYSTEM COMPRISING A SWITCHING OFFICE, A PLURALITY OF TELEPHONE LINES CONNECTED TO SAID OFFICE, MEANS RESPONSIVE TO ANSWERING SERVICE SIGNALS RECEIVED FROM A CALLING ONE OF SAID LINES FOR ASSURING THAT THE CALLING LINE IS ENTITLED TO THE SERVICE, ANSWERING EQUIPMENT AT SAID OFFICE, MEANS ACTUATED BY SAID ASSURING MEANS FOR CONDITIONING SAID EQUIPMENT TO SERVE AN ENTITLED CALLING LINE, SAID ANSWERING EQUIPMENT INCLUDING MEANS ACTIVATED BY CONTROL SIGNALS FROM SAID ENTITLED LINE FOR DETECTING SUBSEQUENT INCOMING CALLS TO SAID ENTITLED LINE, MEANS CONTROLLED BY SAID DETECTING MEANS FOR SUPPLYING A RECORDED ANNOUNCEMENT TO SAID ENTITLED LINE TO ANSWER SAID CALLS, MEANS OPERATIVE EACH TIME AFTER SAID ANNOUNCEMENT IS SUPPLIED TO SAID LINE FOR RECORDING MESSAGES RECEIVED FROM OTHER LINES, AND MEANS RESPONSIVE TO CODED SIGNALS FROM ANY OF SAID LINES FOR SUPPLYING THE RECORDED MESSAGES TO SAID LAST-MENTIONED LINES.
References Cited (Backward Citations)
USRE23054E
Cited
US2979568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |