Patent US3247414A successfully refreshed from Google Patents.
US3247414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic compositions for electroluminescent cells
Assignee: General Electric Co
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Filing: 1962-12-27
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Granted: 1966-04-19
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Expires: 1982-12-27
Abstract
No abstract record available.
Inventors
- 👤 Robert V Levetan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:59
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
36 words
A PLASTIC COMPOSITION OF HIGH DIELECTRIC CONSTANT CONSISTING ESSENTIALLY OF A SOLUTION OF CYANOETHYLATED POLYSACCHARIDE IN CYANOETHYL SUCROSE IN A VOLUME RATIO OF CYANOETHYL SUCROSE TO CYANOETHYLATED POLYSACCHARIDE GREATER THAN 1:1 AND NOT MORE THAN 5:1.
Claim 2
Dependent Claim
36 words
A PLASTIC COMPOSITION OF HIGH DIELECTRIC CONSTANT CONSISTING ESSENTIALLY OF A SOLUTION OF CYANOETHYLATED POLYSACCHARIDE IN CYANOETHYL SUCROSE IN A VOLUME RATIO OF CYANOETHYL SUCROSE TO CYANOETHYLATED POLYSACCHARIDE GREATER THAN 1:1 AND NOT MORE THAN 5:1.
Claim 3
Dependent Claim
94 words
AN ELECTROLUMINESCENT DEVICE COMPRISING A PHOSPHOR LAYER COMPRISING SOLID PARTICULATE PHOSPHOR DISPERSED IN A MATRIX; AND A VOLTAGE BARRIER LAYER COMPRISING SOLID PARTICULATE BARRIER MATERIAL DISPERSED IN A MATRIX DISPOSED BETWEEN ELECTRODE MEMBRS AT LEAST ONE OF WHICH COMPRISES A LIGHT-TRANSMITTING ELECTRICALLY CONDUCTIVE LAYER COMPRISING LIGHT-TRANSMITTING ELECTRICALLY CONDUCTIVE PARTICULATE MATERIAL DISPRSED IN A MATRIX, THE SOLID PARTICULATE SUBSTANCE OF AT LEAST ONE OF SAID LAYERS BEING DISPERSED IN A MATRIX CONSISTING ESSENTIALLY OF A SOLUTION OF A CYANOETHYLATED POLYASACCHARIDE IN CYANOETHYL SUCROSE IN A VOLUME RATIO NOT LESS THAN 1:1 AND UP TO 1:5.
Claim 4
Dependent Claim
94 words
AN ELECTROLUMINESCENT DEVICE COMPRISING A PHOSPHOR LAYER COMPRISING SOLID PARTICULATE PHOSPHOR DISPERSED IN A MATRIX; AND A VOLTAGE BARRIER LAYER COMPRISING SOLID PARTICULATE BARRIER MATERIAL DISPERSED IN A MATRIX DISPOSED BETWEEN ELECTRODE MEMBRS AT LEAST ONE OF WHICH COMPRISES A LIGHT-TRANSMITTING ELECTRICALLY CONDUCTIVE LAYER COMPRISING LIGHT-TRANSMITTING ELECTRICALLY CONDUCTIVE PARTICULATE MATERIAL DISPRSED IN A MATRIX, THE SOLID PARTICULATE SUBSTANCE OF AT LEAST ONE OF SAID LAYERS BEING DISPERSED IN A MATRIX CONSISTING ESSENTIALLY OF A SOLUTION OF A CYANOETHYLATED POLYASACCHARIDE IN CYANOETHYL SUCROSE IN A VOLUME RATIO NOT LESS THAN 1:1 AND UP TO 1:5.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |