US3238407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Matrix for electroluminescent cells
Assignee: General Electric Co
•
Filing: 1957-12-10
•
Granted: 1966-03-01
•
Expires: 1977-12-10
Abstract
No abstract record available.
Inventors
- 👤 Mary S Jaffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:37
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
AN ELECTROLUMINESCENT CELL COMPRISING AN ELECTROLUMINESCENT PHOSPHOR LAYER SANDWICHED BETWEEN THE PAIR OF CONDUCTING LAYERS AT LEAST ONE OF WHICH IS LIGHT-TRANSMITTING, SAID ELECTROLUMINESCENT LAYER COMPRISING A PHOS-
Claim 2
Dependent Claim
28 words
AN ELECTROLUMINESCENT CELL COMPRISING AN ELECTROLUMINESCENT PHOSPHOR LAYER SANDWICHED BETWEEN THE PAIR OF CONDUCTING LAYERS AT LEAST ONE OF WHICH IS LIGHT-TRANSMITTING, SAID ELECTROLUMINESCENT LAYER COMPRISING A PHOS-
References Cited (Backward Citations)
US2733367A
Cited
US2837660A
Cited
US2566349A
Cited
US2765419A
Cited
US2834903A
Cited
US2774004A
Cited
US2851634A
Cited
US2920256A
Cited
US2836766A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |