US3314893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Group ii metal-thorium phosphate phosphors
Assignee: General Electric Co
•
Filing: 1966-01-03
•
Granted: 1967-04-18
•
Expires: 1986-01-03
Abstract
No abstract record available.
Inventors
- 👤 Mary V Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:34
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/70; C09K11/71
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A METAL THORIUM PHOSPHATE PHOSPHOR SELECTED FROM THE GROUP CONSISTING OF: MTHP2O8 WHEREIN M IS A METAL SELECTED FROM THE GROUP CONSISTING OF CALCIUM, MAGNESIUM AND ZINC, AND MM''TH2P4O16 WHEREIN M IS A METAL SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM AND ZINC, WHEN M IS ZINC, M'' IS BARIUM, AND WHN M IS MAGNESIUM, M'' IS A METAL SELECTED FROM THE GROUP CONSISTING OF BARIUM AND STRONTIUM, SAID PHOSPHOR BEING ACTIVATED BY AT LEAST ONE ELEMENT SELECTED FROM THE GROUP CONSISTIG OF DEVALEN TIN, DIVALENT MANGANESE, TERBIUM, DYSPROSIUM AND URANIUM.
Claim 2
Dependent Claim
91 words
A METAL THORIUM PHOSPHATE PHOSPHOR SELECTED FROM THE GROUP CONSISTING OF: MTHP2O8 WHEREIN M IS A METAL SELECTED FROM THE GROUP CONSISTING OF CALCIUM, MAGNESIUM AND ZINC, AND MM''TH2P4O16 WHEREIN M IS A METAL SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM AND ZINC, WHEN M IS ZINC, M'' IS BARIUM, AND WHN M IS MAGNESIUM, M'' IS A METAL SELECTED FROM THE GROUP CONSISTING OF BARIUM AND STRONTIUM, SAID PHOSPHOR BEING ACTIVATED BY AT LEAST ONE ELEMENT SELECTED FROM THE GROUP CONSISTIG OF DEVALEN TIN, DIVALENT MANGANESE, TERBIUM, DYSPROSIUM AND URANIUM.
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) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |