Patent US3281333A successfully refreshed from Google Patents.
US3281333A
Expired / Lapsed
US
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Prospecting for petroleum deposits
Assignee: Phillips Petroleum Co
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Filing: 1964-09-17
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Granted: 1966-10-25
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Expires: 1984-09-17
Abstract
No abstract record available.
Inventors
- 👤 Donald O Hitzman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:30
CPC Classifications
G; G01; G01V; G01V9/00; G01V9/007; G01N; G01N33/00; G01N33/24; G01N33/241
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN A METHOD OF PROSPECTING FOR SUBTERRRANEAN OIL AND GAS DEPOSIT WHEREIN SAMPLES OF SOIL FROM SPACED POINTS IN THE AREA UNDER INVESTIGATION ARE ANYALYZED FOR THE PRESANCE OF HYDROCARBON-CONSUMING MICROORGANISMS WHOSE PRESENCE IS INDICATIVE OF SUBTERRANEAN OIL AND GAS DEPOSITS, IMPROVEMENT WHICH COMPRISES: SUBJECTING AN ALIQUOT PORTION OF EACH OF SAID SAMPLES TO THE ACTION OF A PHENOLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHENOLIC COMPOUND CHARACTERIZED BY THE FOLLOWING STRUCTURAL FORMULA
Claim 2
Dependent Claim
74 words
IN A METHOD OF PROSPECTING FOR SUBTERRRANEAN OIL AND GAS DEPOSIT WHEREIN SAMPLES OF SOIL FROM SPACED POINTS IN THE AREA UNDER INVESTIGATION ARE ANYALYZED FOR THE PRESANCE OF HYDROCARBON-CONSUMING MICROORGANISMS WHOSE PRESENCE IS INDICATIVE OF SUBTERRANEAN OIL AND GAS DEPOSITS, IMPROVEMENT WHICH COMPRISES: SUBJECTING AN ALIQUOT PORTION OF EACH OF SAID SAMPLES TO THE ACTION OF A PHENOLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHENOLIC COMPOUND CHARACTERIZED BY THE FOLLOWING STRUCTURAL FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |