US2961412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnesium aluminum silicate phosphor
Assignee: General Electric Co
•
Filing: 1957-08-20
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Granted: 1960-11-22
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Expires: 1977-08-20
Abstract
No abstract record available.
Inventors
- 👤 Floyd A Hummel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:56
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/64; C09K11/646
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A LUMINESCENT MATERIAL HAVING ESSENTIALLY THE FORMULATE XMGO.YAL2O3.ZSIO2:AMNO WHEREIN X+A IS IN THE RANGE OF 1.8 TO 2.2, Y IS IN THE RANGE OF 1.8 TO 2.2, Z IS IN THE RANGE OF 4.8 TO 8.2, AND A IS IN ACTIVATOR PROPORTIONS IN THE RANGE OF ABOUT 0.07 TO 0.4.
Claim 2
Dependent Claim
50 words
A LUMINESCENT MATERIAL HAVING ESSENTIALLY THE FORMULATE XMGO.YAL2O3.ZSIO2:AMNO WHEREIN X+A IS IN THE RANGE OF 1.8 TO 2.2, Y IS IN THE RANGE OF 1.8 TO 2.2, Z IS IN THE RANGE OF 4.8 TO 8.2, AND A IS IN ACTIVATOR PROPORTIONS IN THE RANGE OF ABOUT 0.07 TO 0.4.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |