US3188384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal distribution system including an interrogation signal channel connected serially between subscriber stations
Assignee: TELEPROMPTER CORP
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Filing: 1961-03-31
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Granted: 1965-06-08
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Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
- 👤 Charles L Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:25
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/16; H04N7/173; H04N7/17309; H04N7/17345; H04N7/17363; H04N2007/17372
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A SIGNAL DISTRIBUTION SYSTEM COMPRISING A CENTRAL STATION, A PLURALITY OF SUBSCRIBER''S STATIONS, A SOURCE OF SIGNALS AT THE CENTRAL STATION, A TRANSMISSION LINE FOR SAID SIGNALS EXTENDING FROM SAID CENTRAL STATION AND HAVING A BRANCH EXTENDING TO EACH OF SAID SUBSCRIBER''S STATIONS, SIGNAL BLOCKING MEANS REMOVABLY INSERTABLE INTO EACH OF SAID BRANCHES, SEPARATE MEANS AT EACH SUBSCRIBER''S STATION OPERABLE TOGETHER FROM SAID CENTRAL STATION FOR INSERTING SAID BLOCKING MEANS, SEPARATE MEANS AT EACH SUBSCRIBER''S STATION TO DISABLE AND INSERTING MEANS, MEANS AT EACH SUBSCRIBER''S STATION FOR PRODUCING AN INDICATION OF THE CONDITION OF SAID DISABLING MEANS AT SUCH STATION, MEANS AT SAID CENTRAL STATION FOR RECORDING THE CONDITION OF SAID DISABLING MEANS AT EACH OF SAID SUBSCRIBER''S STATIONS, A SYSTEM SIGNAL CHANNEL EXTENDING FROM SAID CENTRAL STATION TO ONE OF SAID
Claim 2
Dependent Claim
132 words
A SIGNAL DISTRIBUTION SYSTEM COMPRISING A CENTRAL STATION, A PLURALITY OF SUBSCRIBER''S STATIONS, A SOURCE OF SIGNALS AT THE CENTRAL STATION, A TRANSMISSION LINE FOR SAID SIGNALS EXTENDING FROM SAID CENTRAL STATION AND HAVING A BRANCH EXTENDING TO EACH OF SAID SUBSCRIBER''S STATIONS, SIGNAL BLOCKING MEANS REMOVABLY INSERTABLE INTO EACH OF SAID BRANCHES, SEPARATE MEANS AT EACH SUBSCRIBER''S STATION OPERABLE TOGETHER FROM SAID CENTRAL STATION FOR INSERTING SAID BLOCKING MEANS, SEPARATE MEANS AT EACH SUBSCRIBER''S STATION TO DISABLE AND INSERTING MEANS, MEANS AT EACH SUBSCRIBER''S STATION FOR PRODUCING AN INDICATION OF THE CONDITION OF SAID DISABLING MEANS AT SUCH STATION, MEANS AT SAID CENTRAL STATION FOR RECORDING THE CONDITION OF SAID DISABLING MEANS AT EACH OF SAID SUBSCRIBER''S STATIONS, A SYSTEM SIGNAL CHANNEL EXTENDING FROM SAID CENTRAL STATION TO ONE OF SAID
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) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |