US3475640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent device utilizing interconnected electrically conductive particles within a dielectric medium
Assignee: Avco Corp
•
Filing: 1965-08-19
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Granted: 1969-10-28
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Expires: 1985-08-19
Abstract
No abstract record available.
Inventors
- 👤 Irving Litant
- 👤 Ralph C Pratt
- 👤 Gerald L Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:14
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2837660A
Cited
US2755406A
Cited
US2887601A
Cited
US3148107A
Cited
US3290537A
Cited
US3315111A
Cited
US3376453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |