US3559190A
Expired / Lapsed
US
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Gaseous display and memory apparatus
Assignee: University of Illinois at Urbana-Champaign
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Filing: 1966-12-22
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Granted: 1971-01-26
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Expires: 1986-12-22
Abstract
Abstract A PLASMA DISPLAY APPATATUS FOR INFORMATION STORAGE AND DISPLAY HAVING A BISTABLE GASEOUS DISCHARGE CELL WITH MEMORY CHARACTERISTICS ARISING FROM CHARGE STORAGE ON THE CELL WALLS. A PANEL ARRAY OF BISTABLE GASEOUS DISCHARGE CELLS WITH INFORMATION TRANSFER TO AND FROM THE ARRAY BEING EFFECTED BY ELECTRICAL DISCHARGE SIGNALS SELECTIVELY COUPLED EXTERNALLY OF THE GASEOUS DISCHARGE MEDIUM FOR CONTROLLING CELL WALL CHARGES ASSOCIATED WITH THE INFORMATION STORED IN SELECTED CELLS. DISPLAY APPARATUS HAVING BISTABLE GASEOUS DISCHARGE CELLS RESPONDING DIRECTLY TO DIGITAL INFORMATION FROM A COMPUTER.
Inventors
- 👤 Donald L Bitzer
- 👤 Hiram Gene Slottow
- 👤 Robert H Willson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:33
CPC Classifications
H; H01; H01J; H01J11/00; H01J11/10; H01J11/12; G; G09; G09G; G09G3/00; G09G3/20; G09G3/2007; G09G3/22; G09G3/28; G09G3/288; G09G3/296; G09G3/297; G09G5/00; G09G5/22; G11; G11C; G11C11/00; G11C11/21; G11C11/26; G11C11/28; G11C11/34; G11C11/40; G11C11/401; G11C11/403; H01J65/00; H04; H04N; H04N3/00; H04N3/10; H04N3/12; H04N3/125; H04N9/00; H04N9/12; G09G2320/00; G09G2320/02; G09G2320/0228; G09G3/2003
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |