Patent US1752498A successfully refreshed from Google Patents.
Patent US3078382A successfully refreshed from Google Patents.
US3078382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent device
Assignee: Westinghouse Electric Corp
•
Filing: 1960-09-21
•
Granted: 1963-02-19
•
Expires: 1980-09-21
Abstract
No abstract record available.
Inventors
- 👤 Jr William A Thornton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:05
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
AN ELECTROLUMINESCENT DEVICE COMPRISING, SPACED ELECTRODES, FINELY DIVIDED ZINC-SULFIDE-TYPE ELLECTROLUMINESCENT PHOSPHOR EMBEDDED IN PLASTIC DIELECTRIC MATERIAL
Claim 2
Dependent Claim
16 words
AN ELECTROLUMINESCENT DEVICE COMPRISING, SPACED ELECTRODES, FINELY DIVIDED ZINC-SULFIDE-TYPE ELLECTROLUMINESCENT PHOSPHOR EMBEDDED IN PLASTIC DIELECTRIC MATERIAL
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |