US2721945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Geophysical exploration
Assignee: Research Inc
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Filing: 1951-08-09
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Granted: 1955-10-25
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Expires: 1971-08-09
Abstract
No abstract record available.
Inventors
- 👤 Wayne E Sell
- 👤 James A Forrester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:29
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/185; G01V; G01V5/00; G01V5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
THE METHOD OF GEOPHYSICAL EXPLORATION FOR A DEPOSIT OF OIL COMPRISING MEASURING AT ONE LOCATION THE LOW-LEVEL RADIATION IMMEDIATELY ABOVE THE UNDISTURBED SURFACE OF THE SOIL OVER AN AREA SUFFICIENTLY WIDE TO MINIMIZE LOCAL CONTAMINATION TO PROVIDE A REPRODUCEABLE MEASUREMENT, SIMILARLY MEASURING THE SAID LOW-LEVEL RADIATION AT A SERIES OF LOCATIONS, CHARTING SAID LOCATIONS AND THE VALUE OF THE RADIATION MEASURED THEREAT, JOINING THE ISODYNAMOUS POINTS, AND EXTENDING THE MEASURING OF SAID RADIATION OVER A SUFFICIENT TERRITORY TO DEFINE, BY THE REGIONS OF MAXIMUM RADIATION, THE PERIPHERY OF SAID OIL DEPOSIT.
Claim 2
Independent Claim
91 words
THE METHOD OF GEOPHYSICAL EXPLORATION FOR A DEPOSIT OF OIL COMPRISING MEASURING AT ONE LOCATION THE LOW-LEVEL RADIATION IMMEDIATELY ABOVE THE UNDISTURBED SURFACE OF THE SOIL OVER AN AREA SUFFICIENTLY WIDE TO MINIMIZE LOCAL CONTAMINATION TO PROVIDE A REPRODUCEABLE MEASUREMENT, SIMILARLY MEASURING THE SAID LOW-LEVEL RADIATION AT A SERIES OF LOCATIONS, CHARTING SAID LOCATIONS AND THE VALUE OF THE RADIATION MEASURED THEREAT, JOINING THE ISODYNAMOUS POINTS, AND EXTENDING THE MEASURING OF SAID RADIATION OVER A SUFFICIENT TERRITORY TO DEFINE, BY THE REGIONS OF MAXIMUM RADIATION, THE PERIPHERY OF SAID OIL DEPOSIT.
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) | 1958-10-24 | 1959-04-25 | 1959-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-24 | 1963-04-25 | 1963-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-24 | 1967-04-25 | 1967-10-25 | $7700.00 | Window Closed / Lapsed |