US3060345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display devices
Assignee: Westinghouse Electric Corp
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Filing: 1960-10-25
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Granted: 1962-10-23
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Expires: 1980-10-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Edgar A Sack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:19
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A DISPLAY DEVICE COMPRISING A BODY OF PHOSPHOR MATERIAL HAVING THE PROPERTY OF EXHIBITING ELECTROLUMINESCENCE WHEN SUBJECTING TO A VARYING ELECTRIC FIELD AND MEANS TO VARY THE ELECTRIC FIELD ACROSS SAID BODY IN RESPONSE TO AN APPLIED RADIATION SINGNAL, SAID MEANS INCLUDING AT LEAST ONE SEMI-CONDUCTIVE CONTROL ELEMENT ELECTRICALLY COUPLED TO SAID BODY PF PHOSPHOR MATERIAL AND RESPONSIVE TO AN APPLIED ENERGY SIGNAL TO SWITCH FROM A FIRST STABLE STATE OF LOW CONDUCTIVITY TO A SECOND STABLE STATE OF HYPERCONDUCTIVITY.
Claim 2
Dependent Claim
80 words
A DISPLAY DEVICE COMPRISING A BODY OF PHOSPHOR MATERIAL HAVING THE PROPERTY OF EXHIBITING ELECTROLUMINESCENCE WHEN SUBJECTING TO A VARYING ELECTRIC FIELD AND MEANS TO VARY THE ELECTRIC FIELD ACROSS SAID BODY IN RESPONSE TO AN APPLIED RADIATION SINGNAL, SAID MEANS INCLUDING AT LEAST ONE SEMI-CONDUCTIVE CONTROL ELEMENT ELECTRICALLY COUPLED TO SAID BODY PF PHOSPHOR MATERIAL AND RESPONSIVE TO AN APPLIED ENERGY SIGNAL TO SWITCH FROM A FIRST STABLE STATE OF LOW CONDUCTIVITY TO A SECOND STABLE STATE OF HYPERCONDUCTIVITY.
References Cited (Backward Citations)
US2790088A
Cited
US2856553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |