US3253089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equipment for occasional telephone answering-service systems
Assignee: AT&T Inc
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Filing: 1962-12-17
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Granted: 1966-05-24
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Expires: 1982-12-17
Abstract
No abstract record available.
Inventors
- 👤 Breen Charles
- 👤 Jr Robert E Watson
- 👤 Seymour B Weinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:00
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0004; H04M; H04M3/00; H04M3/42; H04M3/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN COMBINATION, GROUPS OF TELEPHONE CUSTOMER LINES, A PLURALITY OF TRUNK CIRCUITS EACH HAVING AN ASSOCIATED TRUNK TO A TELEPHONE ANSWERING-SERVICE BUREAU, SWITCHING MEANS ACTIVATED IN RESPONSE TO SIGNALS RECEIVED FROM SAID BUREAU FOR CONNECTING ANY DESIGNATED GROUP OF SAID LINES TO ANY ONE OF SAID CIRCUITS, AND MEANS IN EACH OF SAID CIRCUITS CONTROLLED FROM SAID BUREAU FOR EXTENDING CALLS ON ANY OF SAID CONNECTED LINES TO SAID BUREAU VIA THE ASSOCIATED TRUNK.
Claim 2
Dependent Claim
74 words
IN COMBINATION, GROUPS OF TELEPHONE CUSTOMER LINES, A PLURALITY OF TRUNK CIRCUITS EACH HAVING AN ASSOCIATED TRUNK TO A TELEPHONE ANSWERING-SERVICE BUREAU, SWITCHING MEANS ACTIVATED IN RESPONSE TO SIGNALS RECEIVED FROM SAID BUREAU FOR CONNECTING ANY DESIGNATED GROUP OF SAID LINES TO ANY ONE OF SAID CIRCUITS, AND MEANS IN EACH OF SAID CIRCUITS CONTROLLED FROM SAID BUREAU FOR EXTENDING CALLS ON ANY OF SAID CONNECTED LINES TO SAID BUREAU VIA THE ASSOCIATED TRUNK.
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) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |