Patent US3327064A successfully refreshed from Google Patents.
US3327064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Small hotel-motel private branch exchange
Assignee: AT&T Inc
•
Filing: 1964-01-06
•
Granted: 1967-06-20
•
Expires: 1984-01-06
Abstract
No abstract record available.
Inventors
- 👤 Reed J Braund
- 👤 Donald J Gagne
- 👤 Vincent J Matthews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:33
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A TELEPHONE SYSTEM COMPRISING A PLURALITY OF LINES AND TRUNKS, AT LEAST ONE OF SAID TRUNKS BEING AN ANSWERING TRUNK, AN ATTENDANT CONSOLE, SWITCHING MEANS NORMALLY CONTROLABLE FROM SAID ATTENDANT CONSOLE TO CONNECT A CALLING ONE OF SAID TRUNKS WITH ANY OF SAID LINES, SAID SETTABLE AT SAID ATTENDANT CONSOLE FOR AUTOMATICALLY CONNECTING A CALLING ONE OF SAID PLURALITY OF TRUNKS WITH SAID ANSWERING TRUNK, STATION CIRCUIT MEANS ASSOCIATED WITH SAID LINES, SAID STATION CIRCUIT MEANS INCLUDING A PLURALITY OF KEYS SELECTIVELY OPERABLE TO ANSWER SAID CALLING ONE OF SAID TRUNKS OVER SAID ANSWERING TRUNK, SAID PLURALITY OF KEYS BEING SEQUENTIALLY OPERABLE TEMPORARILY TO RENDER SAID ANSWERING TRUNK UNSELECTABLE BY ANY OTHER OF SAID LINES, AND MEANS THEREAFTER CONTROLLABLE OVER THE ONE OF SAID LINES SELECTING SAID ANSWERING TRUNK FOR OPERATING SAID SWITCHING MEANS TO CALL ANY OTHER ONE OF SAID LINES.
Claim 2
Dependent Claim
142 words
A TELEPHONE SYSTEM COMPRISING A PLURALITY OF LINES AND TRUNKS, AT LEAST ONE OF SAID TRUNKS BEING AN ANSWERING TRUNK, AN ATTENDANT CONSOLE, SWITCHING MEANS NORMALLY CONTROLABLE FROM SAID ATTENDANT CONSOLE TO CONNECT A CALLING ONE OF SAID TRUNKS WITH ANY OF SAID LINES, SAID SETTABLE AT SAID ATTENDANT CONSOLE FOR AUTOMATICALLY CONNECTING A CALLING ONE OF SAID PLURALITY OF TRUNKS WITH SAID ANSWERING TRUNK, STATION CIRCUIT MEANS ASSOCIATED WITH SAID LINES, SAID STATION CIRCUIT MEANS INCLUDING A PLURALITY OF KEYS SELECTIVELY OPERABLE TO ANSWER SAID CALLING ONE OF SAID TRUNKS OVER SAID ANSWERING TRUNK, SAID PLURALITY OF KEYS BEING SEQUENTIALLY OPERABLE TEMPORARILY TO RENDER SAID ANSWERING TRUNK UNSELECTABLE BY ANY OTHER OF SAID LINES, AND MEANS THEREAFTER CONTROLLABLE OVER THE ONE OF SAID LINES SELECTING SAID ANSWERING TRUNK FOR OPERATING SAID SWITCHING MEANS TO CALL ANY OTHER ONE OF SAID LINES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |