US2738430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High energy radiation dosimeter
Assignee: Individual
•
Filing: 1953-02-06
•
Granted: 1956-03-13
•
Expires: 1973-02-06
Abstract
No abstract record available.
Inventors
- 👤 James H Schulman
- 👤 Clifford C Klick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:15
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/02; G01T1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A DOSIMETER FOR HIGH ENERGY RADIATION COMPRISING A RADIATION DETECTOR ELEMENT IN THE FORM OF A SOLID SLAB OF SILVER ACTIVATED PHOSPHATE GLASS HAVING A RELATIVELY HIGH SENSITIVITY TO RELATIVELY SOFT X-RAYS OF THE ORDER OF 30,000 TO 200,000 ELECTRON VOLTS EFFECTIVE AND RELATIVELY LOWER SENSITIVITY TO RADIATION OF FROM 200,000 TO 3,000,000 ELECTRON VOLTS EFFECTIVE, A CASING FOR THE DETECTOR ELEMENT FORMED OF MATERIAL SUBSTANTIALLY TRANSPARENT TO HIGH ENERGY RADIATION, AND SHIELDING MEANS COMPRISED OF SPACED DISCRETE PARTICLES OF SHIELDING MATERIAL SUBSTANTIALLY UNIFORMLY DISPERSED IN PREDETERMINED CONCENTRATION ABOUT THE DETECTOR ELEMENT, WHEREBY TO PROVIDE NUMEROUS SUBSTANTIALLY EVENLY DISTRIBUTED SHIELDED AND UNSHIELDED PORTIONS AROUND ALL SIDES OF THE SLAB-SHAPED DETECTOR.
Claim 2
Dependent Claim
110 words
A DOSIMETER FOR HIGH ENERGY RADIATION COMPRISING A RADIATION DETECTOR ELEMENT IN THE FORM OF A SOLID SLAB OF SILVER ACTIVATED PHOSPHATE GLASS HAVING A RELATIVELY HIGH SENSITIVITY TO RELATIVELY SOFT X-RAYS OF THE ORDER OF 30,000 TO 200,000 ELECTRON VOLTS EFFECTIVE AND RELATIVELY LOWER SENSITIVITY TO RADIATION OF FROM 200,000 TO 3,000,000 ELECTRON VOLTS EFFECTIVE, A CASING FOR THE DETECTOR ELEMENT FORMED OF MATERIAL SUBSTANTIALLY TRANSPARENT TO HIGH ENERGY RADIATION, AND SHIELDING MEANS COMPRISED OF SPACED DISCRETE PARTICLES OF SHIELDING MATERIAL SUBSTANTIALLY UNIFORMLY DISPERSED IN PREDETERMINED CONCENTRATION ABOUT THE DETECTOR ELEMENT, WHEREBY TO PROVIDE NUMEROUS SUBSTANTIALLY EVENLY DISTRIBUTED SHIELDED AND UNSHIELDED PORTIONS AROUND ALL SIDES OF THE SLAB-SHAPED DETECTOR.
References Cited (Backward Citations)
US2216326A
Cited
US2513805A
Cited
US2403794A
Cited
US2483991A
Cited
US2496218A
Cited
US2524839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |