Patent US3256512A successfully refreshed from Google Patents.
US3256512A
Expired / Lapsed
US
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Remote sign control system
Assignee: North Electric Co
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Filing: 1962-06-05
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Granted: 1966-06-14
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Expires: 1982-06-05
Abstract
No abstract record available.
Inventors
- 👤 Robert E Pickett
- 👤 Edward F Poshadel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:10
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/09; G08G1/0962; G08G1/0967; G08G1/096708; G08G1/096716; G08G1/096733; G08G1/096758; G08G1/096766; G08G1/096783
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
143 words
IN A SUPERVISORY CONTROL SYSTEM HAVING A CENTRAL OFFICE FOR CONTROLLING THE DISPLAY OF INFORMATION LOCATED AT EACH OF A PLURALITY OF REMOTE LOCATIONS, A CHANNEL EXTENDING BETWEEN THE CONTROL OFFICE AND EACH OF SAID REMOTE LOCATIONS, MEANS AT EACH REMOTE LOCATION INCLUDING A DISPLAY SIGN HAVING A DISPLAY MEANS INCLUDING A DISPLAY AREA, A MESSAGE-CARRYING SHEET MEMBER AND ROLLER MEANS OPERATIVE TO MOVE SAID SHEET MEMBER TO EACH OF A NUMBER OF DIFFERENT POSITIONS TO DISPLAY A CORRESPONDINGLY DIFFERENT MESSAGE IN SAID DISPLAY AREA, CODE MEANS OPERABLE WITH SAID SHEET MEMBER, DETECTOR MEANS OPERABLE WITH MOVEMENT OF THE SHEET MEMBER TO SENSE SID CODE MEANS, MEANS CONTROLLED BY SAID DETECTOR MEANS TO GENERATE A CODE SIGNAL SET FOR TRANSMISSION OVER SAID CHANNEL WHICH INDICATES THE INFORMATION DISPLAYED IN SAID DISPLAY AREA, MEANS AT EACH REMOTE STATION FOR DETECTING THE CHANGE OF CERTAIN
References Cited (Backward Citations)
US2432324A
Cited
US2852767A
Cited
US2849701A
Cited
US2945624A
Cited
US2895122A
Cited
US2903675A
Cited
US2914662A
Cited
US2964742A
Cited
US3094682A
Cited
US3047852A
Cited
US3200375A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |