Patent US2675331A successfully refreshed from Google Patents.
US2675331A
Expired / Lapsed
US
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Transparent luminescent screen
Assignee: General Electric Co
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Filing: 1950-12-15
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Granted: 1954-04-13
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Expires: 1970-12-15
Abstract
No abstract record available.
Inventors
- 👤 Dominic A Cusano
- 👤 Frank J Studer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:26
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; H01J9/221; C; C09; C09K; C09K11/00; C09K11/08; C09K11/0805; C09K11/0811
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A LUMINESCENT SCREEN IN THE FORM OF A GLASS BASE PLATE, AND A TRANSPARENT FILM OVERLYING SAID BASE PLATE, SAID FILM CONSISTING OF AN ACTIVATED MATERIAL SELECTED FROM THE CLASS CONSISTING OF THE SULFIDE AND SELENIDE OF A MATERIAL SELECTED FROM THE CLASS CONSISTING OF ZINC, CADMIUM, AND MIXTURES THEREOF, SAID ACTIVATED MATERIAL HAVING BEEN PRODUCED BY A VAPOR PHASE REACTION IMMEDIATELY BEFORE DEPOSITION UPON SAID BASE PLATE.
Claim 2
Dependent Claim
68 words
A LUMINESCENT SCREEN IN THE FORM OF A GLASS BASE PLATE, AND A TRANSPARENT FILM OVERLYING SAID BASE PLATE, SAID FILM CONSISTING OF AN ACTIVATED MATERIAL SELECTED FROM THE CLASS CONSISTING OF THE SULFIDE AND SELENIDE OF A MATERIAL SELECTED FROM THE CLASS CONSISTING OF ZINC, CADMIUM, AND MIXTURES THEREOF, SAID ACTIVATED MATERIAL HAVING BEEN PRODUCED BY A VAPOR PHASE REACTION IMMEDIATELY BEFORE DEPOSITION UPON SAID BASE PLATE.
References Cited (Backward Citations)
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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) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |