US3096254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Geomicrobiological prospecting
Assignee: Phillips Petroleum Co
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Filing: 1960-11-04
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Granted: 1963-07-02
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Expires: 1980-11-04
Abstract
No abstract record available.
Inventors
- 👤 Donald O Hitzman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:19
CPC Classifications
G; G01; G01V; G01V9/00; G01V9/007; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/832; Y10S435/874
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
THE METHOD OF PROSPECTING FOR SUBTERRANEAN PETROLEUM HYDROCARBON DEPOSITS WHICH COMPRISES COLLECTING SAMPLES OF SOIL FROM SPACED POINTS IN THE AREA UNDER INVESTIGATION, SAID SAMPLES CONTAINING BOTH HEAT RESISTANT AND NON-HEAT RESISTANT FORMS OF MICROORGANISMS; HEATING IN THE RANGE FROM 40-75* C. SAID SOIL SAMPLES FOR A PERIOD OF TIME WHICH RANGES BETWEEN 2 AND 60 MINUTES SUFFICIENT TO KILL OFF SUBSTANTIALLY ALL OF THE NON-HEAT RESISTANT FORMS OF SAID MICROORGANISMS WHILE LEAVING VIABLE THE MORE HEAT RESISTANT FORMS THEREOF; AND STORING SAID HEAT-TREATED SOIL SAMPLES FOR AN EXTENDED PERIOD OF TIME UNTIL READY TO CARRY OUT ANALYSIS OF THE SAME FOR EVIDENCE OF HYDROCARBON-INDICATING TYPES OF MICROORGANISMS GROWTH.
References Cited (Backward Citations)
US2880142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |