US2880142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prospecting for petroleum deposits
Assignee: Phillips Petroleum Co
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Filing: 1956-12-10
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Granted: 1959-03-31
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Expires: 1976-12-10
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
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A METHOD OF PROSPECTING FOR SUBTERRANEAN PETROLEUM DEPOSITS WHEREIN SAMPLES OF SOIL FROM SPACED POINTS IN THE AREA UNDER INVESTIGATION ARE ANALYZED FOR THE PRESENCE OF HYDROCARBON-CONSUMING MICROORGANISMS, WHOSE PRESENCE IS INDICATIVE OF SUBSURFACE PETROLEUM DEPOSIT, THE IMPROVEMENT WHICH COMPRISES, SUBJECTING AN ALIQUOT PORTION OF EACH OF SAID SAMPLES TO THE ACTION OF AN ALIPHATIC ALCOHOL CONTAINING NOT MORE THAN 4 CARBON ATOMS AS A SUBSTRATE IN A CULTURE MEDIUM UNDER INCUBATING CONDITIONS FOR A PERIOD OF TIME SUFFICIENT TO PERMIT GROWTH OF SAID MICROORGANISMS, AND EXASMINING SAID CULTURE MEDIUM FOR EVIDENCE OF SAID GROWTH.
Claim 2
Dependent Claim
96 words
IN A METHOD OF PROSPECTING FOR SUBTERRANEAN PETROLEUM DEPOSITS WHEREIN SAMPLES OF SOIL FROM SPACED POINTS IN THE AREA UNDER INVESTIGATION ARE ANALYZED FOR THE PRESENCE OF HYDROCARBON-CONSUMING MICROORGANISMS, WHOSE PRESENCE IS INDICATIVE OF SUBSURFACE PETROLEUM DEPOSIT, THE IMPROVEMENT WHICH COMPRISES, SUBJECTING AN ALIQUOT PORTION OF EACH OF SAID SAMPLES TO THE ACTION OF AN ALIPHATIC ALCOHOL CONTAINING NOT MORE THAN 4 CARBON ATOMS AS A SUBSTRATE IN A CULTURE MEDIUM UNDER INCUBATING CONDITIONS FOR A PERIOD OF TIME SUFFICIENT TO PERMIT GROWTH OF SAID MICROORGANISMS, AND EXASMINING SAID CULTURE MEDIUM FOR EVIDENCE OF SAID GROWTH.
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) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |