Patent US2875135A successfully refreshed from Google Patents.
US2875135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Geomicrobiological prospecting
Assignee: Texaco Inc
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Filing: 1956-12-28
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Granted: 1959-02-24
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Expires: 1976-12-28
Abstract
No abstract record available.
Inventors
- 👤 Jr James Maddox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:21
CPC Classifications
G; G01; G01V; G01V9/00; G01V9/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN A GEOMICROBIOLOGICAL PROSPECTING PROCESS WHEREIN SOIL SAMPLES ARE INCUBATED WITH A HYDROCARBON SUBSTRATE IN THE PRESENCE OF AQUEROUS INORGANIC SALT NUTRIENT MEDIUM CONDUCTIVE TO OPTIMUM GROWTH OF HYDROCARBONCONSUMING MICROORGANISMS IN THE SOIL SAMPLES AND ATHE RATES OF HYDROCARBON CONSUMPTION ARE DETERMINED AND CORRELATED WITH THE AREA BEING PROSPECTED AS A MEASURE OF SUBSURFACE PETROLEUM DEPOSITS, THE IMPROVEMENT WHICH COMPRISES INCUBATING A REACTION MIXTURE COMPRISING HYDROCARBON SUBSTRATE, SAOIL SAMPLE AND AQUEOUS INORGANIC SALT NUTRIENT MEDIUM UNDER QUIESCENT CONDITIONS FOR A PERIOD OF 24 TO 72 HOURS AND IMMEDIATELY THEREAFTER INCUBATING SAID REACTION MIXTURE UNDER CONDITIONS OF AGITATION.
Claim 2
Dependent Claim
97 words
IN A GEOMICROBIOLOGICAL PROSPECTING PROCESS WHEREIN SOIL SAMPLES ARE INCUBATED WITH A HYDROCARBON SUBSTRATE IN THE PRESENCE OF AQUEROUS INORGANIC SALT NUTRIENT MEDIUM CONDUCTIVE TO OPTIMUM GROWTH OF HYDROCARBONCONSUMING MICROORGANISMS IN THE SOIL SAMPLES AND ATHE RATES OF HYDROCARBON CONSUMPTION ARE DETERMINED AND CORRELATED WITH THE AREA BEING PROSPECTED AS A MEASURE OF SUBSURFACE PETROLEUM DEPOSITS, THE IMPROVEMENT WHICH COMPRISES INCUBATING A REACTION MIXTURE COMPRISING HYDROCARBON SUBSTRATE, SAOIL SAMPLE AND AQUEOUS INORGANIC SALT NUTRIENT MEDIUM UNDER QUIESCENT CONDITIONS FOR A PERIOD OF 24 TO 72 HOURS AND IMMEDIATELY THEREAFTER INCUBATING SAID REACTION MIXTURE UNDER CONDITIONS OF AGITATION.
References Cited (Backward Citations)
US2665237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |