US2945128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent structures and method of manufacture
Assignee: Westinghouse Electric Corp
•
Filing: 1955-12-29
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Granted: 1960-07-12
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Expires: 1975-12-29
Abstract
No abstract record available.
Inventors
- 👤 Sun Kuan-Han
- 👤 Paul R Malmberg
- 👤 Frances A Pecjak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:11
CPC Classifications
G; G01; G01T; G01T3/00; G01T3/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
A PHOSPHOR FOR A SCINTILLATION COUNTER COMPRISING, A DISK SHAPED TRANSPARENT MOLD HAVING A GROOVED FACE ON ONE SIDE, SAID GROOVES BEING ARRANGED TO FORM SUBSTANTIALLY PARALLEL CIRCULAR RIDGES THEREBETWEEN, THE OTHER FACE OF SAID MOLD BEING SUBSTANTIALLY FLAT, SAID GROOVES BEING FILLED WITH A FLUORESCENT MATERIAL SO AS TO FILL SAID GROOVES AND TO COVER SAID ONE SIDE, SAID MATERIAL COMPRISING SILVER-ACTIVATED ZINC SULPHIDE AND A TRANSPARENT BORON COMPOUND IN THE RATIO BY WEIGHT OF BETWEEN 1:1 TO 1.9:1, SAID BORON COMPOUND HAVING A FUSION POINT OF BETWEEN 150*C. AND 250*C., AND A METALLIC FOIL BACKING CAPABLE OF REFLECTING LIGHT MOUNTED ON SIAD FLUORESCENT MATERIAL, WHEREBY THE LIGHT TRANSMISSION EFFICIENCY OF THE PHOSPHOR IS SUBSTANTIALLY INCREASED.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |