US2858632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel illumination
Assignee: Motors Liquidation Co
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Filing: 1955-06-27
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Granted: 1958-11-04
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Expires: 1975-06-27
Abstract
No abstract record available.
Inventors
- 👤 Martin J Caserio
- 👤 Henry C Stuerzl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:04
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/20; G09F13/22; Y; Y10; Y10S; Y10S116/00; Y10S116/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN ILLUMINATING MEANS, A THIN TANSPARENT ELECTRICALLY CONDUCTIVE SHEET, ELECTRO-LUMINESCENT PHOSPHOR MEANS HAVING A DESIRED CONFIGURATION SECURED TO ONE SIDE OF SAID CONDUCTIVE SHEET, AN ELECTRICALLY INSULATING LAYER SECURED THAT SIDE OF THE SHEET AND COVERING THE CONFIGURATIONS AND A SECOND SHEET OF ELECTRICALLY CONDUCTIVE MATERIAL SECURED ADJACENT THE ELECTRICALLY INSULATING LAYER TO PRODUCE A VARIABLE FIELD BETWEEN THE TWO CONDUCTIVE SHEETS WHEN VOLTAGE IS APPLIED THEREACROSS TO CAUSE THE ELECTRO-LUMINESCENT PHOSPHOR MEANS TO GLOW TO PRODUCE INDICATING MATERIAL.
Claim 2
Dependent Claim
79 words
IN ILLUMINATING MEANS, A THIN TANSPARENT ELECTRICALLY CONDUCTIVE SHEET, ELECTRO-LUMINESCENT PHOSPHOR MEANS HAVING A DESIRED CONFIGURATION SECURED TO ONE SIDE OF SAID CONDUCTIVE SHEET, AN ELECTRICALLY INSULATING LAYER SECURED THAT SIDE OF THE SHEET AND COVERING THE CONFIGURATIONS AND A SECOND SHEET OF ELECTRICALLY CONDUCTIVE MATERIAL SECURED ADJACENT THE ELECTRICALLY INSULATING LAYER TO PRODUCE A VARIABLE FIELD BETWEEN THE TWO CONDUCTIVE SHEETS WHEN VOLTAGE IS APPLIED THEREACROSS TO CAUSE THE ELECTRO-LUMINESCENT PHOSPHOR MEANS TO GLOW TO PRODUCE INDICATING MATERIAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |