Patent US2430469A successfully refreshed from Google Patents.
Patent US2799561A successfully refreshed from Google Patents.
US2799561A
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Method and apparatus for determining hydrocarbon content of solid earth formation samples
Assignee: Monarch Logging Co Inc
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Filing: 1954-11-17
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Granted: 1957-07-16
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Expires: 1974-11-17
Abstract
No abstract record available.
Inventors
- 👤 Robert W Rochon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:31
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/005; G; G01; G01N; G01N7/00; G01N7/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
THE METHOD OF DETERMINING THE PRODUCIBLE HYDROCARBON CONTENT OF EARTH FORMATIONS, COMPRISING, SUBJECTING A SAMPLE OF AN EARTH FORMATION WHILE CONFINED WITHIN A CHAMBER TO A PLURATILY OF SUCCESSIVE VACUUM EXTRACTIONS AT SUBSTANTIALLY CONSTANT SUB-ATMOSPHERIC PRESSURE, THE SAMPLE BEING CONTINUOUSLY MAINTAINED UNDER SAID SUB-ATMOSPHERIC PRESSURE FOR SUBSTANTIALLY UNIFORM TIME INTERVALS DURING EACH EXTRACTION, WITHDRAWING THE GASEOUS HYDROCARBONS EXTRACTED FROM THE SAMPLEFROM THE CHAMBER AFTER EACH EXTRACTION, AND DETERMINING THE VOLUME OF GASEOUS HYDROCARBONS WITHDRAWN FROM THE SAMPLE IN EACH EXTRACTION.
Claim 2
Independent Claim
80 words
THE METHOD OF DETERMINING THE PRODUCIBLE HYDROCARBON CONTENT OF EARTH FORMATIONS, COMPRISING, SUBJECTING A SAMPLE OF AN EARTH FORMATION WHILE CONFINED WITHIN A CHAMBER TO A PLURATILY OF SUCCESSIVE VACUUM EXTRACTIONS AT SUBSTANTIALLY CONSTANT SUB-ATMOSPHERIC PRESSURE, THE SAMPLE BEING CONTINUOUSLY MAINTAINED UNDER SAID SUB-ATMOSPHERIC PRESSURE FOR SUBSTANTIALLY UNIFORM TIME INTERVALS DURING EACH EXTRACTION, WITHDRAWING THE GASEOUS HYDROCARBONS EXTRACTED FROM THE SAMPLEFROM THE CHAMBER AFTER EACH EXTRACTION, AND DETERMINING THE VOLUME OF GASEOUS HYDROCARBONS WITHDRAWN FROM THE SAMPLE IN EACH EXTRACTION.
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) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |