Patent US3085197A successfully refreshed from Google Patents.
US3085197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inductor survey apparatus and method for determining presence of oil bearing substrata
Assignee: Individual
•
Filing: 1958-04-28
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Granted: 1963-04-09
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Expires: 1978-04-28
Abstract
No abstract record available.
Inventors
- 👤 Donald L Hings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:14
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/08; G01V3/087; G01R; G01R33/00; G01R33/02; G01R33/028; G01R33/0283
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
MEANS TO DETERMINE THE PRESENCE OF SALT-WATER CONTACT WITH HYDROCARBON BEARING SUBSTRATA COMPRISING, ANGLE MEASURING MEANS TO DETERMINE RESPECTIVELY THE MAGNETIC ANGLES AT FIRST AND SECOND SPACED LOCATIONS UNDER A FIRST DIURNAL GRADIENT, FIRST CONTROL MEANS RESPONSIVE TO SAID FIRST DIURNAL GRADIENT TO CONTROL SAID ANGLE MEASURING MEANS, AND SECOND CONTROL MEANS RESPONSIVE TO A CHANGED DIURNAL GRADIENT TO CONTROL SAID ANGLE MEASURING MEANS TO DETERMINE RESPECTIVELY THE CHANGE IN THE MAGNETIC ANGLES AT SAID FIRST AND SECOND SPACED LOCATIONS UNDER SAID CHANGED DIURNAL GRADIENT, A CHANGE IN ANGLE AT SAID FIRST LOCATION OPPOSITE TO THAT AT SAID SECOND LOCATION DETERMINING THE PRESENCE OF SALT-WATER CONTACT WITH HYDROCARBON BEARING SUBSTRATA BETWEEN SAID FIRST AND SECOND LOCATIONS.
Claim 2
Dependent Claim
116 words
MEANS TO DETERMINE THE PRESENCE OF SALT-WATER CONTACT WITH HYDROCARBON BEARING SUBSTRATA COMPRISING, ANGLE MEASURING MEANS TO DETERMINE RESPECTIVELY THE MAGNETIC ANGLES AT FIRST AND SECOND SPACED LOCATIONS UNDER A FIRST DIURNAL GRADIENT, FIRST CONTROL MEANS RESPONSIVE TO SAID FIRST DIURNAL GRADIENT TO CONTROL SAID ANGLE MEASURING MEANS, AND SECOND CONTROL MEANS RESPONSIVE TO A CHANGED DIURNAL GRADIENT TO CONTROL SAID ANGLE MEASURING MEANS TO DETERMINE RESPECTIVELY THE CHANGE IN THE MAGNETIC ANGLES AT SAID FIRST AND SECOND SPACED LOCATIONS UNDER SAID CHANGED DIURNAL GRADIENT, A CHANGE IN ANGLE AT SAID FIRST LOCATION OPPOSITE TO THAT AT SAID SECOND LOCATION DETERMINING THE PRESENCE OF SALT-WATER CONTACT WITH HYDROCARBON BEARING SUBSTRATA BETWEEN SAID FIRST AND SECOND LOCATIONS.
References Cited (Backward Citations)
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US2151627A
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US2468554A
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US2474693A
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US2659859A
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US2611803A
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US2548571A
Cited
US2635134A
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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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |