US2709765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent structure
Assignee: General Electric Co
•
Filing: 1951-11-23
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Granted: 1955-05-31
•
Expires: 1971-11-23
Abstract
No abstract record available.
Inventors
- 👤 Lewis R Koller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:59
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/14; H05B33/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
AN ELECTROLUMINESCENT CELL COMPRISING THE COMBINATION OF A CONTINUOUS, NON-GRANULAR, VAPOR-DEPOSITED CONDUCTING LAYER OF ACTIVATED ZINC SULFIDE OF THE ORDER OF SEVERAL MICRONS THICK, A TRANSPARENT CONDUCTING LAYER IN CONTACT WITH ONE SURFACE THEREOF, A SUPERIMPOSED VAPORDEPOSITED TRANSPARENT NON-CONDUCTING LAYER OVERLYING THE OPPOSITE SURFACE OF SAID ZINC SULFIDE LAYER AND A CONDUCTING LAYER EXTERNAL TO THE LATTER NON-CONDUCTING LAYER.
Claim 2
Dependent Claim
59 words
AN ELECTROLUMINESCENT CELL COMPRISING THE COMBINATION OF A CONTINUOUS, NON-GRANULAR, VAPOR-DEPOSITED CONDUCTING LAYER OF ACTIVATED ZINC SULFIDE OF THE ORDER OF SEVERAL MICRONS THICK, A TRANSPARENT CONDUCTING LAYER IN CONTACT WITH ONE SURFACE THEREOF, A SUPERIMPOSED VAPORDEPOSITED TRANSPARENT NON-CONDUCTING LAYER OVERLYING THE OPPOSITE SURFACE OF SAID ZINC SULFIDE LAYER AND A CONDUCTING LAYER EXTERNAL TO THE LATTER NON-CONDUCTING LAYER.
References Cited (Backward Citations)
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US2303563A
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US2462517A
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US2600579A
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US2559279A
Cited
US2459633A
Cited
US2624857A
Cited
US2566349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-30 | 1958-11-29 | 1959-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-30 | 1962-11-29 | 1963-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-30 | 1966-11-29 | 1967-05-31 | $7700.00 | Window Closed / Lapsed |