US3484752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for storing and visibly reproducing images using an electroluminescent cell exhibiting persistent internal polarization
Assignee: New York University
•
Filing: 1965-04-19
•
Granted: 1969-12-16
•
Expires: 1985-04-19
Abstract
No abstract record available.
Inventors
- 👤 Hartmut P Kallmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:19
CPC Classifications
H; H01; H01G; H01G7/00; H01G7/02; H05; H05B; H05B33/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2912592A
Cited
US3005707A
Cited
US3010043A
Cited
US2924732A
Cited
US3235850A
Cited
US3268331A
Cited
US3211663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |