US3393337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent devices
Assignee: Individual
•
Filing: 1964-01-14
•
Granted: 1968-07-16
•
Expires: 1984-01-14
Abstract
No abstract record available.
Inventors
- 👤 Panerai Maria
- 👤 Panerai Giuseppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:24
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/22; H05B33/02; H05B33/04; H05B33/26; H05B33/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3070722A
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US3048731A
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DE1106600B
Cited
US2981858A
Cited
US3074816A
Cited
US3167677A
Cited
US3252845A
Cited
US3161797A
Cited
US3244556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |