US2789062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent fluoride luminescent screen and method for preparing same
Assignee: General Electric Co
•
Filing: 1952-04-03
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Granted: 1957-04-16
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Expires: 1972-04-03
Abstract
No abstract record available.
Inventors
- 👤 Dominic A Cusano
- 👤 Frank J Studer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:18
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/61; C09K11/615; C09K11/616
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A TRANSPARENT LUMINESCENT SCREEN FOR CATHODE RAYS COMPRISING A BASE OF TRANSPARENT MATERIAL HAVING A MELTING POINT OVER 400*C., AND A TRANSPARENT FILM DEPOSITED ON SAID BASE, SAID FILM COMPRISING A FLUORIDE SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM FLUORIDE AND ZINC-
Claim 2
Dependent Claim
42 words
A TRANSPARENT LUMINESCENT SCREEN FOR CATHODE RAYS COMPRISING A BASE OF TRANSPARENT MATERIAL HAVING A MELTING POINT OVER 400*C., AND A TRANSPARENT FILM DEPOSITED ON SAID BASE, SAID FILM COMPRISING A FLUORIDE SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM FLUORIDE AND ZINC-
References Cited (Backward Citations)
US2462517A
Cited
US2542122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |