US3067145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparation of titanium activated barium pyrophosphate phosphor
Assignee: GTE Sylvania Inc
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Filing: 1960-10-25
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Granted: 1962-12-04
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Expires: 1980-10-25
Abstract
No abstract record available.
Inventors
- 👤 Richard C Ropp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:33
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/08; C09K11/70; C09K11/71; G; G21; G21K; G21K4/00; H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
IN THE PROCESS FOR THE PREPARATION OF A TITANIUM ACTIVATED BARIUM PYROPHOSPHATE PHOSPHOR, THE STEPS FOR IMPROVING THE PHOSPHOR WHICH COMPRISE, ADDING TOGETHER WITH A BARIUM FLUORIDE FLUX A SUBSTANTIALLY EQUIMOLAR QUANTITY OF AMMONIUM ORTHOPHOSPHATE TO THE BARIUM PYROPHOSPHATE FORMING MATERIALS PRIOR TO A FIRING.
Claim 2
Dependent Claim
45 words
IN THE PROCESS FOR THE PREPARATION OF A TITANIUM ACTIVATED BARIUM PYROPHOSPHATE PHOSPHOR, THE STEPS FOR IMPROVING THE PHOSPHOR WHICH COMPRISE, ADDING TOGETHER WITH A BARIUM FLUORIDE FLUX A SUBSTANTIALLY EQUIMOLAR QUANTITY OF AMMONIUM ORTHOPHOSPHATE TO THE BARIUM PYROPHOSPHATE FORMING MATERIALS PRIOR TO A FIRING.
References Cited (Backward Citations)
US2596509A
Cited
US2882238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |