US3306770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent panel
Assignee: Hercules LLC
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Filing: 1963-06-25
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Granted: 1967-02-28
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Expires: 1983-06-25
Abstract
No abstract record available.
Inventors
- 👤 Eugene D Klug
- 👤 Richard A Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:22
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/20; C; C08; C08B; C08B31/00; C08B31/08; C08B31/12; C08B31/125; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/266; Y10T428/31504; Y10T428/31511; Y10T428/31525; Y10T428/31529
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
AN ELECTROLUMINESCENT PANEL COMPRISING (A) A LIGHT TRANSMITTING ELECTRICALLY CONDUCTIVE LAYER, (B) A LAYER OVER LAYER (A) OF A FIELD RESPONSIVE PHOSPHOR IN CYANOETHYL STARCH AND (C) AN ELECTRICALLY CONDUCTIVE LAYER OVER LAYER (B).
Claim 2
Dependent Claim
34 words
AN ELECTROLUMINESCENT PANEL COMPRISING (A) A LIGHT TRANSMITTING ELECTRICALLY CONDUCTIVE LAYER, (B) A LAYER OVER LAYER (A) OF A FIELD RESPONSIVE PHOSPHOR IN CYANOETHYL STARCH AND (C) AN ELECTRICALLY CONDUCTIVE LAYER OVER LAYER (B).
References Cited (Backward Citations)
US3247414A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |