US3359211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blue-white europium activated aluminosilicate phosphor
Assignee: Philips North America LLC
•
Filing: 1964-10-12
•
Granted: 1967-12-19
•
Expires: 1984-10-12
Abstract
No abstract record available.
Inventors
- 👤 Philip M Jaffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:53
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/77; C09K11/7728; C09K11/77344
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A PHOSPHOR COMPOSITION HAVING THE FORMULATION XAL2O3-(1-X)SIO2:YEU, WHEREIN X IS FROM 0.05 TO 0.8 AND Y IS FROM 0.0015 TO 0.15.
Claim 2
Dependent Claim
21 words
A PHOSPHOR COMPOSITION HAVING THE FORMULATION XAL2O3-(1-X)SIO2:YEU, WHEREIN X IS FROM 0.05 TO 0.8 AND Y IS FROM 0.0015 TO 0.15.
References Cited (Backward Citations)
US3250722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |