US3087085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent screen for cathode-ray tubes
Assignee: Ferranti International PLC
•
Filing: 1960-06-30
•
Granted: 1963-04-23
•
Expires: 1980-06-30
Abstract
No abstract record available.
Inventors
- 👤 Turner George Christie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:26
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/182; Y; Y10; Y10S; Y10S313/00; Y10S313/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN A CATHODE-RAY TUBE OF THE TYPE INCLUDING AN ELECTRON BEAM PRODUCING GUN AND AN ENVELOPE HAVING A GLASS FACE PLATE, A SCREEN COMPRISING, IN THE FOLLOWING ORDER FROM THE FACE PLATE, A PLURALITY OF STRIPS OF TRANSPARENT ELECTRICALLY CONDUCTIVE MATERIAL MOUNTED ON A TRANSPRENT BASE AND ELECTRICALLY SEPARATE FROM ONE ANOTHER, A LAYER OF AN ELECTROLUMINESCENT PHOSPHOR COVERING SAID STRIPS, A LAYER OF ELECTRICAL INSULATING MATERIAL WHICH BECOMES
Claim 2
Dependent Claim
69 words
IN A CATHODE-RAY TUBE OF THE TYPE INCLUDING AN ELECTRON BEAM PRODUCING GUN AND AN ENVELOPE HAVING A GLASS FACE PLATE, A SCREEN COMPRISING, IN THE FOLLOWING ORDER FROM THE FACE PLATE, A PLURALITY OF STRIPS OF TRANSPARENT ELECTRICALLY CONDUCTIVE MATERIAL MOUNTED ON A TRANSPRENT BASE AND ELECTRICALLY SEPARATE FROM ONE ANOTHER, A LAYER OF AN ELECTROLUMINESCENT PHOSPHOR COVERING SAID STRIPS, A LAYER OF ELECTRICAL INSULATING MATERIAL WHICH BECOMES
References Cited (Backward Citations)
US2863084A
Cited
US2905849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |