Patent US2949534A successfully refreshed from Google Patents.
US2949534A
Expired / Lapsed
US
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High temperature scintillation detector
Assignee: Well Surveys Inc
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Filing: 1957-04-15
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Granted: 1960-08-16
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Expires: 1977-04-15
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Youmans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:01
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01T; G01T1/00; G01T1/16; G01T1/20; G01V5/08; G01V5/10; G01V5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A SUBSURFACE INSTRUMENT FOR RADIOACTIVITY WELL LOGGING COMPRISING A THERMALLY INSULATING CONTAINER, A PHOTOSENSITIVE DEVICE FOR TRANSLATING LIGHT PULSES INTO CORRESPONDING ELECTRICAL SIGNALS, SAID PHOTOSENSITIVE DEVICE BEING MOUNTED OUTSIDE OF SAID CONTAINER FOR PROTECTION AGAINST HIGH TEMPERATURES, A SCINTILLATION PHOSPHOR CAPABLE OF EMITTING LIGHT PULSES IN RESPONSE TO IRRADIATION BY RADIOACTIVE EMANATIONS, SAID SCINTILLATION PHOSPHOR BEING MOUNTED OUTSIDE OF SAID CONTAINER, AND MEANS FOR PASSING LIGHT PULSES EMITTED BY SAID PHOSPHOR INTO SAID CONTAINER TO SAID PHOTOSENSITIVE DEVICE.
Claim 2
Dependent Claim
78 words
A SUBSURFACE INSTRUMENT FOR RADIOACTIVITY WELL LOGGING COMPRISING A THERMALLY INSULATING CONTAINER, A PHOTOSENSITIVE DEVICE FOR TRANSLATING LIGHT PULSES INTO CORRESPONDING ELECTRICAL SIGNALS, SAID PHOTOSENSITIVE DEVICE BEING MOUNTED OUTSIDE OF SAID CONTAINER FOR PROTECTION AGAINST HIGH TEMPERATURES, A SCINTILLATION PHOSPHOR CAPABLE OF EMITTING LIGHT PULSES IN RESPONSE TO IRRADIATION BY RADIOACTIVE EMANATIONS, SAID SCINTILLATION PHOSPHOR BEING MOUNTED OUTSIDE OF SAID CONTAINER, AND MEANS FOR PASSING LIGHT PULSES EMITTED BY SAID PHOSPHOR INTO SAID CONTAINER TO SAID PHOTOSENSITIVE DEVICE.
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) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |