Patent US2755430A successfully refreshed from Google Patents.
US2755430A
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Apparatus for and method of logging earth bores
Assignee: Eastman Oil Well Survey Co
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Filing: 1954-05-24
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Granted: 1956-07-17
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Expires: 1974-05-24
Abstract
No abstract record available.
Inventors
- 👤 Jackson John Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:22
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; G01V3/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A METHOD OF LOGGING AN EARTH BORE WHICH DOES NOT CONTAIN ANY ELECTRICAL CONDUCTIVE FLUID, SAID METHOD COMPRISING SUSPENDING IN SAID BORE AN ELECTRODE IN CLOSE PROXIMITY TO THE WALL OF SAID BORE, CONNECTING SAID ELECTRODE IN AN ELECTRICAL CIRCUIT INCLUDING THE EARTH''S FORMATIONS FROM THE EARTH''S SURFACES TO THE BORE ADJACENT THE ELECTRODE, ESTABLISHING AN IONIZED GAS BETWEEN THE ELECTRODE AND THE EARTH''S FORMATIONS ADJACENT THERETO, AND
Claim 2
Independent Claim
68 words
A METHOD OF LOGGING AN EARTH BORE WHICH DOES NOT CONTAIN ANY ELECTRICAL CONDUCTIVE FLUID, SAID METHOD COMPRISING SUSPENDING IN SAID BORE AN ELECTRODE IN CLOSE PROXIMITY TO THE WALL OF SAID BORE, CONNECTING SAID ELECTRODE IN AN ELECTRICAL CIRCUIT INCLUDING THE EARTH''S FORMATIONS FROM THE EARTH''S SURFACES TO THE BORE ADJACENT THE ELECTRODE, ESTABLISHING AN IONIZED GAS BETWEEN THE ELECTRODE AND THE EARTH''S FORMATIONS ADJACENT THERETO, AND
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) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |