US3555538A
Expired / Lapsed
US
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Display apparatus
Assignee: Bunker Ramo Corp
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Filing: 1967-02-15
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Granted: 1971-01-12
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Expires: 1987-02-15
Abstract
Abstract AN APPARATUS FOR CAUSING A DISPLAY DEVICE, E.G., A CATHODE RAY TUBE, TO DISPLAY SYMBOLS AND WORDS IN RESPONSE TO DIGITAL INPUT CODES. THE SYMBOLS ARE DRAWN BY SUCCESSIVELY DEFLECTING THE TUBE BEAM TOWARD SELECTED POINTS ON A DISPLAY MATRIX IN ACCORDANCE WITH INFORMATION READ, DURING SUCCESSIVE TIME PERIODS, FROM A MEMORY INTO WHICH PRE-WIRED INFORMATION IS SELECTIVELY WRITTEN. THE INFORMA- TION READ CAN ALSO DEFINE BEAM TRANSITION TIME, SYMBOL WIDTH, AND UNBLANKING.
Inventors
- 👤 Martin C Henderson
- 👤 Robert A Koster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:16
CPC Classifications
G; G09; G09G; G09G1/00; G09G1/06; G09G1/08; G09G1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |