Patent US2830185A successfully refreshed from Google Patents.
US2830185A
Expired / Lapsed
US
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Radiation detector
Assignee: Individual
•
Filing: 1954-01-04
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Granted: 1958-04-08
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Expires: 1974-01-04
Abstract
No abstract record available.
Inventors
- 👤 Serge A Scherbatskoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:56
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/208; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/10; G01V5/101
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
IN AN APPARATUS FOR MEASURING GAMMA RADIATION EMITTED BY VARIOUS FORMATIONS SURROUNDING A BORE HOLE, A HOUSING ADAPTED TO BE LOWERED INTO SAID HOLE, SAID HOUSING COMPRISING A SHIELD MEANS OPERATIVE SUBSTANTIALLY TO ABSORB GAMMA RADIATION EXTERNALLY IMPINGING UPON IT, SAID SHIELD BEING PROVIDED, HOWEVER, WITH A RELIEVED ZONE OPERATIVE TO PERMIT GAMMA RADIATION ARRIVING SUBSTANTIALLY IN A PREDETERMINED PLANE TO ENTER SAID HOUSING, A FIRST GAMMA-RAY DETECTOR MOUNTED WITHIN SAID HOUSING AND ADAPTED TO RECEIVE GAMMA RADIATION ENTERING SAID HOUSING THROUGH SAID RELIEVED ZONE, AND TO PRODUCE CORRESPONDING CURRENT IMPULSES RESPONSIVELY THERETO, A SECOND GAMMA-RAY DETECTOR SPATIALLY DISPOSED WITHIN SAID HOUSING OUTSIDE THE INFLUENCE OF GAMMA RADIATION ENTERING THE HOUSING THROUGH SAID RELIEVED ZONE BUT DISPOSED
References Cited (Backward Citations)
US2316361A
Cited
US2349753A
Cited
US2469460A
Cited
US2563333A
Cited
US2517404A
Cited
US2610303A
Cited
US2617042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |