US3109068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data handling system
Assignee: General Dynamics Corp
•
Filing: 1960-01-25
•
Granted: 1963-10-29
•
Expires: 1980-01-25
Abstract
No abstract record available.
Inventors
- 👤 Richard K Boyd
- 👤 Milton A Clement
- 👤 James D Confeld
- 👤 Thomas E Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:30
CPC Classifications
H; H04; H04M; H04M15/00; H04M15/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
110 words
A COMMUNICATION SYSTEM COMPRISING A PLURALITY OF CALLED STATIONS GEOGRAPHICALLY REMOTE FROM A CALLING STATION, A COMMON CHANNEL CONNECTING ALL OF SAID STATIONS, MEANS IN EACH OF SAID CALLED STATIONS FOR RETURNING AN ANSWER SIGNAL OVER SAID CHANNEL TO SAID CALLING STATION WHEN THE CALLED STATION IS CONDITIONED FOR COMMUNICATION WITH THE CALLING STATION OVER THE CHANNEL, MEANS IN SAID CALLING STATION FOR SEIZING A SELECTED ONE OF SAID CALLED STATIONS FOR COMMUNICATION WITH SAID CALLING STATION MEANS IN SAID CALLING STATION CONTROLLED BY THE RECEIPT OF AN ANSWER SIGNAL FROM SAID SELECTED CALLED STATION FOR INITIATING COMMUNICATION BETWEEN THE CALLING STATION AND SAID SELECTED CALLED STATION, AND MEANS RESPON-
References Cited (Backward Citations)
US2767246A
Cited
US2581056A
Cited
US2818322A
Cited
US2955279A
Cited
US2771519A
Cited
US2894068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |