US2982039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compatible electroluminescent-incandescent panel display
Assignee: Individual
•
Filing: 1958-09-30
•
Granted: 1961-05-02
•
Expires: 1978-09-30
Abstract
No abstract record available.
Inventors
- 👤 George K C Hardesty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:00
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0011; G02B6/0013; G02B6/0015; G02B6/002; G02B6/0021; G02B6/0033; G02B6/005; G02B6/0081; G02B6/0086; G02B6/0091; G09; G09F; G09F13/00; G09F13/20; G09F13/22; G02B6/0066; G02B6/0068; G02B6/007
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2772496A
Cited
US2725461A
Cited
US2831966A
Cited
US2836707A
Cited
US2872567A
Cited
US2858632A
Cited
US2855709A
Cited
US2860234A
Cited
US2791050A
Cited
US2821800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |