US2509908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiological well logging
Assignee: Texaco Inc
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Filing: 1945-03-28
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Granted: 1950-05-30
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Expires: 1965-03-28
Abstract
No abstract record available.
Inventors
- 👤 Kenneth C Crumrine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:34
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/10; G01V5/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A DEVICE FOR LOGGING A BORE HOLE COMPRISING A HOUSING ADAPTED TO BE LOWERED AND RAISED THROUGH SAID HOLE, A SOURCE OF NEUTRONS AND A DETECTOR OF NEUTRONS IN SAID HOUSING, SAID DETECTOR BEING RESPONSIVE TO NEUTRONS FROM SAID SOURCE SCATTERED IN SAID FORMATIONS AND RETURNED TO SAID HOLE, A SLEEVE IMMEDIATELY SURROUNDING AND CONTINUOUSLY MOVABLE WITH SAID HOUSING AND ADAPTED TO OCCUPY MOST OF THE ANNULAR SPACE BETWEEN SAID HOUSING AND THE WALL OF THE HOLE, SAID SLEEVE BEING FORMED OF A MATERIAL SUCH AS ALUMINUM SUBSTAN-
Claim 2
Independent Claim
88 words
A DEVICE FOR LOGGING A BORE HOLE COMPRISING A HOUSING ADAPTED TO BE LOWERED AND RAISED THROUGH SAID HOLE, A SOURCE OF NEUTRONS AND A DETECTOR OF NEUTRONS IN SAID HOUSING, SAID DETECTOR BEING RESPONSIVE TO NEUTRONS FROM SAID SOURCE SCATTERED IN SAID FORMATIONS AND RETURNED TO SAID HOLE, A SLEEVE IMMEDIATELY SURROUNDING AND CONTINUOUSLY MOVABLE WITH SAID HOUSING AND ADAPTED TO OCCUPY MOST OF THE ANNULAR SPACE BETWEEN SAID HOUSING AND THE WALL OF THE HOLE, SAID SLEEVE BEING FORMED OF A MATERIAL SUCH AS ALUMINUM SUBSTAN-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |