US2907882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent screens
Assignee: EIDP Inc
•
Filing: 1957-05-03
•
Granted: 1959-10-06
•
Expires: 1977-05-03
Abstract
No abstract record available.
Inventors
- 👤 Patten Stanley Hancock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:20
CPC Classifications
G; G21; G21K; G21K4/00; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/17; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/3179; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891; Y10T428/31909; Y10T428/31928; Y10T428/31935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
A LUMINESCENT SCREEN COMPRISING A SUPPORT AND A LAYER OF LUMINESCENT MATERIAL BEARING A PROTECTIVE LAYER
Claim 2
Dependent Claim
16 words
A LUMINESCENT SCREEN COMPRISING A SUPPORT AND A LAYER OF LUMINESCENT MATERIAL BEARING A PROTECTIVE LAYER
References Cited (Backward Citations)
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Cited
US2626873A
Cited
US2694153A
Cited
US2728703A
Cited
US2740050A
Cited
US2693459A
Cited
US2719139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |