Patent US3211666A successfully refreshed from Google Patents.
US3211666A
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Phosphor
Assignee: Westinghouse Electric Corp
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Filing: 1963-02-18
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Granted: 1965-10-12
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Expires: 1983-02-18
Abstract
No abstract record available.
Inventors
- 👤 William A Mcallister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:37
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/77; C09K11/7766; C09K11/7777
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A PHOSPHOR HAVING A MATRIX CONSISTING ESSENTIALLY OF LAPO4 AND ACTIVATED BY ONE MATERIAL OF THE GROUP CONSISTING OF TERBIUM, EUROPIUM, TERBIUM PLUS LITHIUM, EUROPIUM PLUS LITHIUM, TERBIUM PLUS EUROPIUM, AND TERBIUM PLUS EUROPIUM PLUS LITHIUM, THE GRAM-ATOM RATIO OF TOTAL RARE-EARTH ACTIVATOR TO PHOSPHORUS IN SAID PHOSPHOR BEING FROM 0.01:1 TO 0.16:1, AN THE GRAM-ATOM RATIO OF LITHIUM ACTIVATOR TO PHOSPHORUS IN SAID PHOSPHOR BEING FROM 0.01:1 TO 0.16:1.
Claim 2
Dependent Claim
70 words
A PHOSPHOR HAVING A MATRIX CONSISTING ESSENTIALLY OF LAPO4 AND ACTIVATED BY ONE MATERIAL OF THE GROUP CONSISTING OF TERBIUM, EUROPIUM, TERBIUM PLUS LITHIUM, EUROPIUM PLUS LITHIUM, TERBIUM PLUS EUROPIUM, AND TERBIUM PLUS EUROPIUM PLUS LITHIUM, THE GRAM-ATOM RATIO OF TOTAL RARE-EARTH ACTIVATOR TO PHOSPHORUS IN SAID PHOSPHOR BEING FROM 0.01:1 TO 0.16:1, AN THE GRAM-ATOM RATIO OF LITHIUM ACTIVATOR TO PHOSPHORUS IN SAID PHOSPHOR BEING FROM 0.01:1 TO 0.16:1.
References Cited (Backward Citations)
US2270124A
Cited
US3049497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |