US2706790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray detection
Assignee: General Electric Co
•
Filing: 1950-10-18
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Granted: 1955-04-19
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Expires: 1970-10-18
Abstract
No abstract record available.
Inventors
- 👤 Jacobs John Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:47
CPC Classifications
H; H10; H10P; H10P95/00; G; G01; G01T; G01T1/00; G01T1/16; G01T1/26; H10F; H10F99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
THE METHOD OF DETECTING CHANGES IN THE INTENSITY LEVEL OF PULSATING X-RAYS WHICH COMPRISES APPLYING SAID PULSATING X-RAY UPON CADMIUM SULPHIDE AS A SEMI-CON DUCTOR TO THEREBY RAPIDLY CHANGE THE ALTERNATING CURRENT IMPEDANCE OF THE SEMI-CONDUCTOR, AS A PRECISE FUNCTION OF THE INTENSITY FO IMPINGING X-RAYS, WHILE SIMULTANEOUSLY CHANGING THE DIRECT CURRENT RESISTANCE THEREOF AT A RELATIVELY SLOW RATE, AND MEASURING THE ALTERNATING CURRENT IMPEDANCE AS DISTINGUISHED FROM THE DIRECT CURRENT RESISTANCE.
Claim 2
Independent Claim
72 words
THE METHOD OF DETECTING CHANGES IN THE INTENSITY LEVEL OF PULSATING X-RAYS WHICH COMPRISES APPLYING SAID PULSATING X-RAY UPON CADMIUM SULPHIDE AS A SEMI-CON DUCTOR TO THEREBY RAPIDLY CHANGE THE ALTERNATING CURRENT IMPEDANCE OF THE SEMI-CONDUCTOR, AS A PRECISE FUNCTION OF THE INTENSITY FO IMPINGING X-RAYS, WHILE SIMULTANEOUSLY CHANGING THE DIRECT CURRENT RESISTANCE THEREOF AT A RELATIVELY SLOW RATE, AND MEASURING THE ALTERNATING CURRENT IMPEDANCE AS DISTINGUISHED FROM THE DIRECT CURRENT RESISTANCE.
References Cited (Backward Citations)
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US2537388A
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Cited
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Cited
US2547173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-18 | 1958-10-18 | 1959-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-18 | 1962-10-18 | 1963-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-18 | 1966-10-18 | 1967-04-19 | $7700.00 | Window Closed / Lapsed |