Patent US2590113A successfully refreshed from Google Patents.
US2590113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Geochemical prospecting
Assignee: Individual
•
Filing: 1947-03-12
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Granted: 1952-03-25
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Expires: 1967-03-12
Abstract
No abstract record available.
Inventors
- 👤 Mcdermott Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:12
CPC Classifications
G; G01; G01V; G01V9/00; G01V9/007; G01N; G01N7/00; G01N7/14; Y; Y10; Y10T; Y10T436/00; Y10T436/20; Y10T436/204998
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
IN A METHOD OF GEOCHEMICAL PROSPECTING FOR PETROLEUM IN WHICH SOIL SAMPLES ARE COLLECTED AND ANALYZED, THE STEPS WHICH COMPRISES SUBJECTING THE SOIL SAMPLES TO COMBUSTION AT A TEMPERATURE OF ABOUT 500* C. UNTIL ORGANIC MATTER IS DESTROYED AND CO2 IS ELIMINATED FROM SOIL COMPONENTS WHICH PRODUCE THE SAME UPON HEATING TO 500* C., SUBJECT THE SAID SOIL SAMPLES TO A FURTHER HEATING TO A TEMPERATURE OF ABOUT 600* C. IN AN INERT ATMOSPHERE, THEREBY PRODUCING AD-
Claim 2
Dependent Claim
77 words
IN A METHOD OF GEOCHEMICAL PROSPECTING FOR PETROLEUM IN WHICH SOIL SAMPLES ARE COLLECTED AND ANALYZED, THE STEPS WHICH COMPRISES SUBJECTING THE SOIL SAMPLES TO COMBUSTION AT A TEMPERATURE OF ABOUT 500* C. UNTIL ORGANIC MATTER IS DESTROYED AND CO2 IS ELIMINATED FROM SOIL COMPONENTS WHICH PRODUCE THE SAME UPON HEATING TO 500* C., SUBJECT THE SAID SOIL SAMPLES TO A FURTHER HEATING TO A TEMPERATURE OF ABOUT 600* C. IN AN INERT ATMOSPHERE, THEREBY PRODUCING AD-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-25 | 1955-09-24 | 1956-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-25 | 1959-09-24 | 1960-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-25 | 1963-09-24 | 1964-03-25 | $7700.00 | Window Closed / Lapsed |