US3104339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent device
Assignee: GTE Sylvania Inc
•
Filing: 1960-08-08
•
Granted: 1963-09-17
•
Expires: 1980-08-08
Abstract
No abstract record available.
Inventors
- 👤 Koury Frederic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:19
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/10; H05B33/12; H05B33/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
THE METHOD OF MAKING AN ELECTROLUMINESCENT LAYER, SAID METHOD COMPRISING MIXING A SEMI-CONDUCTING OXIDE, AN ELECTROLUMINESCENT PHOSPHOR AND GLASS FRIT, ALL IN POWDERED FORM, AND THEN HEATING THE RESULTANT MIXTURE TO A TEMPERATURE HIGH ENOUGH TO FUSE THE FRIT AND EMBED THE PHOSPHOR THEREIN.
Claim 2
Independent Claim
44 words
THE METHOD OF MAKING AN ELECTROLUMINESCENT LAYER, SAID METHOD COMPRISING MIXING A SEMI-CONDUCTING OXIDE, AN ELECTROLUMINESCENT PHOSPHOR AND GLASS FRIT, ALL IN POWDERED FORM, AND THEN HEATING THE RESULTANT MIXTURE TO A TEMPERATURE HIGH ENOUGH TO FUSE THE FRIT AND EMBED THE PHOSPHOR THEREIN.
References Cited (Backward Citations)
US2857541A
Cited
US2866117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |