US2938136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent lamp
Assignee: General Electric Co
•
Filing: 1958-08-26
•
Granted: 1960-05-24
•
Expires: 1978-08-26
Abstract
No abstract record available.
Inventors
- 👤 Albrecht G Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:32
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/01; H10H20/011; H10H20/013
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2739907A
Cited
US2695852A
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US2825687A
Cited
US2857541A
Cited
US2866117A
Cited
US2841559A
Cited
US2827436A
Cited
US2843542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |