US2879400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loaded dielectric x-ray detector
Assignee: Westinghouse Electric Corp
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Filing: 1954-04-12
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Granted: 1959-03-24
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Expires: 1974-04-12
Abstract
No abstract record available.
Inventors
- 👤 Robert J Schneeberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:51
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/45; H01J29/458
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A DEVICE FOR DETECTION OF HIGH ENERGY PHOTONS NOT LESS THAN THE ENERGY FROM X-RAYS USED IN MEDICAL ROENTGENOLOGY COMPRISING FINE PARTICLES OF A FIRST MATERIAL CONTAINING ATOMS OF ATOMIC NUMBER HIGHER THAN 51 DISTRIBUTED THROUGH A LAYER OF A SECOND MATERIAL EXHIBITING TEMPORARY DECREASE OF ELECTRICAL RESISTIVITY IN THE NEIGHBORHOOD OF PHOTON INCIDENCE DUE TO ELECTRON BOMBARDMENT INDUCED CONDUCTIVITY MEANS FOR IMPRESSING A FIELD ACROSS SAID LAYER AND MEANS FOR DERIVING AN ELECTRICAL SIGNAL FROM SAID LAYER CORRESPONDING TO THE MODIFICATION OF ELECTRICAL RESISTIVITY OF SAID LAYER IN RESPONSE TO PHOTON INCIDENCE ON SAID LAYER.
Claim 2
Independent Claim
96 words
A DEVICE FOR DETECTION OF HIGH ENERGY PHOTONS NOT LESS THAN THE ENERGY FROM X-RAYS USED IN MEDICAL ROENTGENOLOGY COMPRISING FINE PARTICLES OF A FIRST MATERIAL CONTAINING ATOMS OF ATOMIC NUMBER HIGHER THAN 51 DISTRIBUTED THROUGH A LAYER OF A SECOND MATERIAL EXHIBITING TEMPORARY DECREASE OF ELECTRICAL RESISTIVITY IN THE NEIGHBORHOOD OF PHOTON INCIDENCE DUE TO ELECTRON BOMBARDMENT INDUCED CONDUCTIVITY MEANS FOR IMPRESSING A FIELD ACROSS SAID LAYER AND MEANS FOR DERIVING AN ELECTRICAL SIGNAL FROM SAID LAYER CORRESPONDING TO THE MODIFICATION OF ELECTRICAL RESISTIVITY OF SAID LAYER IN RESPONSE TO PHOTON INCIDENCE ON SAID LAYER.
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) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |