US3265628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Uranium and lanthanide activated alkaline earth molybdate and tungstate phosphors
Assignee: International Business Machines Corp
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Filing: 1962-03-23
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Granted: 1966-08-09
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Expires: 1982-03-23
Abstract
No abstract record available.
Inventors
- 👤 Marcel J Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:20
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/77; C09K11/7708
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
55 words
AN ALKALINE EARTH PHOSPHOR SELECTED FROM THE GROUP CONSISTING OF: CALCIUM TUNGSTATE, CALCIUM MOLYBDATE, STRONTIUM TUNGSTATE AND STRONTIUM AND MOLYBDATE, ACTIVATED BY AT LEAST ABOUT 0.01%, BASE ON THE WEIGHT OF OXIDE OF THE ALKALINE EARTH SELECTED, EACH OF URANIUM AND LANTHANIDE METAL SELECTED FROM THE GROUP CONSISTING OF CERIUM EARTHS, TERBIUM EARTHS, AND DYSPROSIUM.
Claim 2
Dependent Claim
55 words
AN ALKALINE EARTH PHOSPHOR SELECTED FROM THE GROUP CONSISTING OF: CALCIUM TUNGSTATE, CALCIUM MOLYBDATE, STRONTIUM TUNGSTATE AND STRONTIUM AND MOLYBDATE, ACTIVATED BY AT LEAST ABOUT 0.01%, BASE ON THE WEIGHT OF OXIDE OF THE ALKALINE EARTH SELECTED, EACH OF URANIUM AND LANTHANIDE METAL SELECTED FROM THE GROUP CONSISTING OF CERIUM EARTHS, TERBIUM EARTHS, AND DYSPROSIUM.
Claim 3
Dependent Claim
155 words
THE PROCESS COMPRISING: MIXING AN ALKALINE EARTH COMPOUND WITH A HEAT DECOMPOSABLE URANIUM COMPOUND AND A HEAT DECOMPOSABLE LANTHANIDE COMPOUND, SAID ALKALINE EARTH COMPOUND FORMING AN ALKALINE EARTH OXIDE AT THE FUSION TEMPERATURE OF THE MIXTURE; HEATING THE MIXTURE TO A TEMPERATURE SUFFICIENT TO FUSE THE ALKALINE EARTH COMPOUND, THE URANIUM COMPOUND, AND THE LANTHANIDE COMPOUND, AND TO FORM THE ALKALINE EARTH OXIDE, SAID URANIUM AND LANTHANIDE COMPOUNDS BEING DECOMPOSED DURING THE HEATING; MIXING THE FUSED MIXTURE WITH A COMPOUND WHICH FORMS A TRANSITION METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF TUNGSTIC OXIDE AND MOLYYBDIC OXIDE AT HEATING THIS MIXTURE TO A TEMPERATURE SUFFICIENT TO FUSE THE MIXTURE AND TO FORM A PHOSPHOR SELECTED FROM THE GROUP CONSISTING OF ALKALINE EARTH TUNGSTATE AND ALKALINE EARTH MOLYBDATE, AND ACTIVATED BY AT LEAST ABOUT 0.01%, BASED ON THE WEIGHT OF SAID ALKALINE EARTH OXIDE, EACH OF URANIUM AND LATHANIDE. THE FUSION TEMPERATURE OF THE MIXTURE; AND
Claim 4
Dependent Claim
155 words
THE PROCESS COMPRISING: MIXING AN ALKALINE EARTH COMPOUND WITH A HEAT DECOMPOSABLE URANIUM COMPOUND AND A HEAT DECOMPOSABLE LANTHANIDE COMPOUND, SAID ALKALINE EARTH COMPOUND FORMING AN ALKALINE EARTH OXIDE AT THE FUSION TEMPERATURE OF THE MIXTURE; HEATING THE MIXTURE TO A TEMPERATURE SUFFICIENT TO FUSE THE ALKALINE EARTH COMPOUND, THE URANIUM COMPOUND, AND THE LANTHANIDE COMPOUND, AND TO FORM THE ALKALINE EARTH OXIDE, SAID URANIUM AND LANTHANIDE COMPOUNDS BEING DECOMPOSED DURING THE HEATING; MIXING THE FUSED MIXTURE WITH A COMPOUND WHICH FORMS A TRANSITION METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF TUNGSTIC OXIDE AND MOLYYBDIC OXIDE AT HEATING THIS MIXTURE TO A TEMPERATURE SUFFICIENT TO FUSE THE MIXTURE AND TO FORM A PHOSPHOR SELECTED FROM THE GROUP CONSISTING OF ALKALINE EARTH TUNGSTATE AND ALKALINE EARTH MOLYBDATE, AND ACTIVATED BY AT LEAST ABOUT 0.01%, BASED ON THE WEIGHT OF SAID ALKALINE EARTH OXIDE, EACH OF URANIUM AND LATHANIDE. THE FUSION TEMPERATURE OF THE MIXTURE; AND
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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |