US3341664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone answering system
Assignee: AT&T Inc
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Filing: 1964-04-29
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Granted: 1967-09-12
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Expires: 1984-04-29
Abstract
No abstract record available.
Inventors
- 👤 Ralph R Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:11
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/54; H04M3/546; H04M3/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN COMBINATION IN A TELEPHONE SWITCHING SYSTEM, SUBSCRIBER''S LINES CONNECTED THERETO, A TELEPHONE ANSWERING BUREAU, MEANS FOR EXTENDING SAID SUBSCRIBER''S LINES TO SAID ANSWERING BUREAU, A PLURALITY OF ATTENDANT POSITIONS AT SAID ANSWERING BUREAU, ATTENDANTS'' HEADSETS FOR SAID POSITIONS, POSITION CONTROL CIRCUITS FOR SAID POSITIONS FOR CONNECTING THE ATTENDANT''S HEADSET WITH SAID LINES, A MANUAL SWITCH CONNECTED TO EACH OF SAID CONTROL CIRCUITS, AND MEANS RESPONSIVE TO THE OPERATION OF A SINGLE ONE OF SAID SWITCHES AT AN OCCUPIED POSITION FOR INTERCONNECTING SAID OCCUPIED POSITION CONTROL CIRCUIT WITH THE POSITION CONTROL CIRCUITS OF THE POSITIONS BETWEEN SAID OCCUPIED POSITION AND THE NEXT OCCUPIED POSITION.
Claim 2
Dependent Claim
104 words
IN COMBINATION IN A TELEPHONE SWITCHING SYSTEM, SUBSCRIBER''S LINES CONNECTED THERETO, A TELEPHONE ANSWERING BUREAU, MEANS FOR EXTENDING SAID SUBSCRIBER''S LINES TO SAID ANSWERING BUREAU, A PLURALITY OF ATTENDANT POSITIONS AT SAID ANSWERING BUREAU, ATTENDANTS'' HEADSETS FOR SAID POSITIONS, POSITION CONTROL CIRCUITS FOR SAID POSITIONS FOR CONNECTING THE ATTENDANT''S HEADSET WITH SAID LINES, A MANUAL SWITCH CONNECTED TO EACH OF SAID CONTROL CIRCUITS, AND MEANS RESPONSIVE TO THE OPERATION OF A SINGLE ONE OF SAID SWITCHES AT AN OCCUPIED POSITION FOR INTERCONNECTING SAID OCCUPIED POSITION CONTROL CIRCUIT WITH THE POSITION CONTROL CIRCUITS OF THE POSITIONS BETWEEN SAID OCCUPIED POSITION AND THE NEXT OCCUPIED POSITION.
References Cited (Backward Citations)
US1942471A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |