US3264411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone conference systems
Assignee: Individual
•
Filing: 1963-04-05
•
Granted: 1966-08-02
•
Expires: 1983-04-05
Abstract
No abstract record available.
Inventors
- 👤 Reaves Michael John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:27
CPC Classifications
H; H04; H04M; H04M9/00; H04M9/002; H04M3/00; H04M3/42; H04M3/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A TELEPHONE SYSTEM INCLUDING AN INSTRUMENT HAVING A RECEIVER AND TRANSMITTER CIRCUIT, A PLURALITY OF LINES TERMINATING AT THE INSTRUMENT, HOLDING MEANS INDIVIDUAL TO EACH OF SAID LINES AND OPERABLE AT THE INSTRUMENT FOR PLACING HOLDING CONDITIONS THEREON, AND KEY MEANS FOR SELECTIVELY AND INDIVIDUALLY CONNECTING SAID LINES TO SAID RECEIVER AND TRANSMITTER CIRCUIT: CONFERENCE MEANS OPERABLE AT THE INSTRUMENT FOR OPERATIVELY CONNECTING ONE LINE HELD IN HOLDING CONDITION BY ITS ASSOCIATED HOLDING MEANS TO SAID RECEIVER AND TRANSMITTER CIRCUIT WHILE ANOTHER LINE IS CONNECTED BY ITS ASSOCIATED KEY MEANS TO SAID RECEIVER AND TRANSMITTER CIRCUIT WHEREBY A THREE PARTY CONFERENCE MAY BE HELD BETWEEN A PARTY EMPLOYING THE INSTRUMENT AND THE PARTIES ON THE LINE HELD IN HOLDING
Claim 2
Dependent Claim
120 words
IN A TELEPHONE SYSTEM INCLUDING AN INSTRUMENT HAVING A RECEIVER AND TRANSMITTER CIRCUIT, A PLURALITY OF LINES TERMINATING AT THE INSTRUMENT, HOLDING MEANS INDIVIDUAL TO EACH OF SAID LINES AND OPERABLE AT THE INSTRUMENT FOR PLACING HOLDING CONDITIONS THEREON, AND KEY MEANS FOR SELECTIVELY AND INDIVIDUALLY CONNECTING SAID LINES TO SAID RECEIVER AND TRANSMITTER CIRCUIT: CONFERENCE MEANS OPERABLE AT THE INSTRUMENT FOR OPERATIVELY CONNECTING ONE LINE HELD IN HOLDING CONDITION BY ITS ASSOCIATED HOLDING MEANS TO SAID RECEIVER AND TRANSMITTER CIRCUIT WHILE ANOTHER LINE IS CONNECTED BY ITS ASSOCIATED KEY MEANS TO SAID RECEIVER AND TRANSMITTER CIRCUIT WHEREBY A THREE PARTY CONFERENCE MAY BE HELD BETWEEN A PARTY EMPLOYING THE INSTRUMENT AND THE PARTIES ON THE LINE HELD IN HOLDING
References Cited (Backward Citations)
US2154579A
Cited
US2164752A
Cited
US2249156A
Cited
US2303015A
Cited
US2828366A
Cited
US2871291A
Cited
US2810016A
Cited
US2912503A
Cited
US2845492A
Cited
US3014988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |