US2908588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zinc sulfide-coated phosphor particles, phosphor screen, and method of making screen
Assignee: RCA Corp
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Filing: 1957-03-15
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Granted: 1959-10-13
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Expires: 1977-03-15
Abstract
No abstract record available.
Inventors
- 👤 Stanley A Harper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:35
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/88; C09K11/881; C09K11/883; H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256; Y10T428/29; Y10T428/2982
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
46 words
A LUMINESCENT SCREEN COMPRISING A SUBSTRATE HAVING ON AT LEAST A PORTION OF THE SURFACE THEREOF, A LAYER OF PARTICLES OF A PHOSPHOR CONTAINING AN ELEMENT SELECTED FROM THE CLASS CONSISTING OF SELENIUM, TELLURIUM, AND CADMIUM, EACH PARTICLE FORMING A THIN COATING OF ZINC SULFIDE THEREON.
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) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |