US2676113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite scotophor-phosphor cathode-ray tube screen
Assignee: National Union Radio Corp
•
Filing: 1952-04-25
•
Granted: 1954-04-20
•
Expires: 1972-04-25
Abstract
No abstract record available.
Inventors
- 👤 Ernest R Jervis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:42
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/14; Y; Y10; Y10S; Y10S428/00; Y10S428/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A DISPLAY SCREEN FOR CATHODE RAY TUBES AND THE LIKE COMPRISING A MIXTURE OF SCOTOPHOR MATERIAL AND FLUORESCENT PHOSPHOR MATERIAL, AND A LIGHT TRANSPARENT SUPPORT TO WHICH SAID MIXTURE IS APPLIED.
Claim 2
Dependent Claim
31 words
A DISPLAY SCREEN FOR CATHODE RAY TUBES AND THE LIKE COMPRISING A MIXTURE OF SCOTOPHOR MATERIAL AND FLUORESCENT PHOSPHOR MATERIAL, AND A LIGHT TRANSPARENT SUPPORT TO WHICH SAID MIXTURE IS APPLIED.
References Cited (Backward Citations)
US2418779A
Cited
US2418780A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |