US3371243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent voltage device
Assignee: Individual
•
Filing: 1952-12-30
•
Granted: 1968-02-27
•
Expires: 1972-12-30
Abstract
No abstract record available.
Inventors
- 👤 Bramley Jenny
- 👤 Bramley Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:23
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
THE METHOD OF RENDERING A SCREEN LUMINESCENT IN DIFFERENT COLORS, WHICH COMPRISES APPLYING A VOLTAGE SELECTIVELY AND SIMULTANEOUSLY TO ONE OF A FIRST GROUP OF SEMITRANSPARENT CONDUCTING STRIPS SIDE BY SIDE AND TO ONE OF A SECOND GROUP OF CONDUCTING STRIPS SIDE BY SIDE AND AT AN ANGLE TO THE STRIPS OF THE FIRST GROUP ACROSS AN ELECTROLUMINESCENT SEMITRANSPARENT DIELECTRIC LAYER HAVING IMPURITY CENTERS, MAKING THE DIELECTRIC LAYER AND IMPURITY SEMI-CONDUCTOR, WHICH LAYER IS ELECTROLUMINESCENT
Claim 2
Independent Claim
75 words
THE METHOD OF RENDERING A SCREEN LUMINESCENT IN DIFFERENT COLORS, WHICH COMPRISES APPLYING A VOLTAGE SELECTIVELY AND SIMULTANEOUSLY TO ONE OF A FIRST GROUP OF SEMITRANSPARENT CONDUCTING STRIPS SIDE BY SIDE AND TO ONE OF A SECOND GROUP OF CONDUCTING STRIPS SIDE BY SIDE AND AT AN ANGLE TO THE STRIPS OF THE FIRST GROUP ACROSS AN ELECTROLUMINESCENT SEMITRANSPARENT DIELECTRIC LAYER HAVING IMPURITY CENTERS, MAKING THE DIELECTRIC LAYER AND IMPURITY SEMI-CONDUCTOR, WHICH LAYER IS ELECTROLUMINESCENT
References Cited (Backward Citations)
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US1458165A
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US2290280A
Cited
US2431380A
Cited
US2603757A
Cited
US2566349A
Cited
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Cited
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Cited
US3002121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |