Patent US3205403A successfully refreshed from Google Patents.
US3205403A
Expired / Lapsed
US
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Electroluminescent display systems
Assignee: Xerox Corp
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Filing: 1962-01-22
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Granted: 1965-09-07
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Expires: 1982-01-22
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Schwertz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:57
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/26; G; G09; G09G; G09G2360/00; G09G2360/14; G09G2360/145; G09G2360/147; G09G2360/148
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A DISPLAY DEVICE FOR THE VISUAL PRESENTATION OF INFORMATION SIGNALS COMPRISING AN ELECTROLUMINESCENT LAYER, AT LEAST ONE ELECTRODE DISPOSED ON EITHER SIDE OF SAID LAYER, ONE OF SAID ELECTRODES ENGAGING ONE SIDE OF SAID LAYER, THE OTHER OF SAID ELECTRODES BEING SPACED FROM THE OTHER SIDE OF SAID LAYER SO AS TO DEFINE A FLUID GAP, AND MEANS RESPONSIVE TO INFORMATION SIGNALS TO IMPRESS A VOLTAGE OF SUFFICIENT STRENGTH BETWEEN SAID ELECTRODES TO EFFECT A FIELD DISCHARGE IN SAID GAP, WHEREBY SAID LAYER IS RENDERED LUMINESCENT.
Claim 2
Dependent Claim
86 words
A DISPLAY DEVICE FOR THE VISUAL PRESENTATION OF INFORMATION SIGNALS COMPRISING AN ELECTROLUMINESCENT LAYER, AT LEAST ONE ELECTRODE DISPOSED ON EITHER SIDE OF SAID LAYER, ONE OF SAID ELECTRODES ENGAGING ONE SIDE OF SAID LAYER, THE OTHER OF SAID ELECTRODES BEING SPACED FROM THE OTHER SIDE OF SAID LAYER SO AS TO DEFINE A FLUID GAP, AND MEANS RESPONSIVE TO INFORMATION SIGNALS TO IMPRESS A VOLTAGE OF SUFFICIENT STRENGTH BETWEEN SAID ELECTRODES TO EFFECT A FIELD DISCHARGE IN SAID GAP, WHEREBY SAID LAYER IS RENDERED LUMINESCENT.
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |