US3102956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Geophysical prospecting
Assignee: Texaco Development Corp
•
Filing: 1955-11-14
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Granted: 1963-09-03
•
Expires: 1975-11-14
Abstract
No abstract record available.
Inventors
- 👤 Fontaine C Armistead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:11
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01V5/08; G01V5/10; G01V5/101; G01V5/102
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
APPARATUS FOR CONDUCTING A RADIOACTIVITY WELL LOG OF AN EARTH FORMATION TRAVERSED BY A BORE HOLE INCLUDING A FLUID CONTENT WHICH COMPRISES A LOGGING INSTRUMENT ADAPTED TO BE PASSED THROUGH A BORE HOLE, SAID INSTRUMENT INCLUSING A SOURCE OF PULSATED NEUTRONS FOR IRRADIATING EARTH FORMATIONS ALONG THE TRANSVERSE OF A BORE HOLE, A DETECTOR OF RADIATIONS EMITTED FROM THE EARTH FORMATIONS AS A RESULT OF SAID IRRADIATION, A QUANTITY OF MATERIAL HAVING
References Cited (Backward Citations)
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US2515500A
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Cited
US2689918A
Cited
US2991364A
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US2867728A
Cited
US2862106A
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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) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |