Patent US2930246A successfully refreshed from Google Patents.
Patent US2878394A successfully refreshed from Google Patents.
US2878394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light amplifier and storage device
Assignee: GTE Sylvania Inc
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Filing: 1957-09-05
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Granted: 1959-03-17
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Expires: 1977-09-05
Abstract
No abstract record available.
Inventors
- 👤 Koury Frederic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:09
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; Y; Y10; Y10S; Y10S116/00; Y10S116/35; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
THE METHOD OF MAKING A LAMINATED DEVICE FOR THE STORAGE, AMPLIFICATION OR CONVERSION OF RADIANT ENERGY WHICH COMPRISES SPRAYING A CONDUCTIVE FILM TRANSPARENT TO ENERGY ON A SIMILARLY TRANSPARENT SURFACE, DEPOSITING AN ELECTROLUMINESCENT LAYER ON SAID TRANSPARENT CONDUCTIVE FILM, COATING SAID ELECTROLUMINESCENT LAYER WITH A LAYER OF RELATIVELY OPAQUE MATERIAL HAVING A TRANSMISSION CHARACTERISTIC IN THE RANGE OF 1 TO 20 PERCENT OF LIGHT FROM SAID ELECTROLUMINESCENT LAYER, APPLYING SEQUENTIALLY A PLURALITY OF PHOTOCONDUCTIVE LAYERS ON SAID LAYER OF RELATIVELY OPAQUE MATERIAL TO FORM A TOTAL PHOTOCONDUCTIVE LAYER OF TWO TO THREE TIMES THE THICKNESS OF SAID ELECTROLUMINESCENT LAYER, AND APPLYING AN ELECTRODE ON SAID TOTAL LAYER OF PHOTOCONDUCTIVE MATERIAL.
Claim 2
Independent Claim
110 words
THE METHOD OF MAKING A LAMINATED DEVICE FOR THE STORAGE, AMPLIFICATION OR CONVERSION OF RADIANT ENERGY WHICH COMPRISES SPRAYING A CONDUCTIVE FILM TRANSPARENT TO ENERGY ON A SIMILARLY TRANSPARENT SURFACE, DEPOSITING AN ELECTROLUMINESCENT LAYER ON SAID TRANSPARENT CONDUCTIVE FILM, COATING SAID ELECTROLUMINESCENT LAYER WITH A LAYER OF RELATIVELY OPAQUE MATERIAL HAVING A TRANSMISSION CHARACTERISTIC IN THE RANGE OF 1 TO 20 PERCENT OF LIGHT FROM SAID ELECTROLUMINESCENT LAYER, APPLYING SEQUENTIALLY A PLURALITY OF PHOTOCONDUCTIVE LAYERS ON SAID LAYER OF RELATIVELY OPAQUE MATERIAL TO FORM A TOTAL PHOTOCONDUCTIVE LAYER OF TWO TO THREE TIMES THE THICKNESS OF SAID ELECTROLUMINESCENT LAYER, AND APPLYING AN ELECTRODE ON SAID TOTAL LAYER OF PHOTOCONDUCTIVE MATERIAL.
References Cited (Backward Citations)
US2798823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |