US3268755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current-electroluminescence device having a high resistance layer
Assignee: Optische Industrie de Oude Delft NV
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Filing: 1962-03-23
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Granted: 1966-08-23
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Expires: 1982-03-23
Abstract
No abstract record available.
Inventors
- 👤 Reschauer Egbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:26
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/80; H10H20/81; H05; H05B; H05B33/00; H05B33/12; H05B33/22
Claims Analysis
Total Claims: 0
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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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |