US2885523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded resistors
Assignee: Sprague Electric Co
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Filing: 1954-02-25
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Granted: 1959-05-05
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Expires: 1974-02-25
Abstract
No abstract record available.
Inventors
- 👤 Wayne E Wright
- 👤 Gibbons William A Fitz
- 👤 Stephen C Major
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:25
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/02; H01C1/032; H01C17/00; H01C17/06; H01C17/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
A HIGH ENERGY RADIATION DETECTION DEVICE COMPRISING A FIRST ELECTRODE, S COATING OF A MATERIAL ON SAID ELECTRODE WHICH MAKES A LOW RESISTANCE OHMIC CONTACT BETWEEN SAID ELECTRODE AND A LAYER OF P-TYPE MATERIAL ON SAID COATING, A LAYER OF N-TYPE SEMICONDUCTOR PHOSPHOR MATERIAL OR SAID P-TYPE MATERIAL AND FORMING THEREWITH A BROAD AREA JUNCTION, A SECOND ELECTRODE ON SAID N-TYPE SEMICONDUCTOR PHOSPHOR MATERIAL AND MEANS IN CIRCUIT WITH SAID ELECTRODES TO DIRECT A CURRENT IN SAID DEVICE PRODUCED BY THE INCIDENCE THEREIN OF HIGH ENERGY RADIATION, THE SECOND ELECTRODE BEING SUFFICIENTLY THICK TO RENDER IT OPAGUE TO VISIBLE LIGHT WHILE TRANSPARENT TO HIGH ENERGY RADIATION SUCH AS X-RAYS AND GAMMA RAYS.
References Cited (Backward Citations)
US2078772A
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FR772273A
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US1973038A
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GB472408A
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US2176604A
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US2282398A
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US2396087A
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US2497376A
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US2640903A
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US2740732A
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US2742551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |