US2749220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for measuring gas in cores
Assignee: Monarch Logging Co Inc
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Filing: 1953-09-21
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Granted: 1956-06-05
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Expires: 1973-09-21
Abstract
No abstract record available.
Inventors
- 👤 Robert W Rochon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:47
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/0004; G01N33/0009; G01N33/0027; G01N33/0036; G01N33/0047; Y; Y10; Y10T; Y10T436/00; Y10T436/21; Y10T436/25; Y10T436/25375
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
THE METHOD OF DETERMINING THE HYDROCARBON GAS CONTENT OF A SOLID EARTH FORMATION CORE, COMPRISING INTRODUCING THE CORE INTO A CHAMBER CONTAINING A BODY OF LIQUID MERCURY, COMPLETELY DISPLACING EXTRANCOUS AIR FROM THE CHAMBER WITH THE MERCURY, THEREAFTER SEALING THE CHAMBER, THEN LOWERING THE MERCURY LEVEL WHEREBY TO CREATE IN THE CHAMBER A VACUUM SUFFICIENT TO WITHDRAW THE GAS FROM THE CORE INTO THE CHAMBER, INTRODUCING AIR FROM OUTSIDE THE CHAMBER INTO THE EVACUATED CHAMBER TO FORM WITH THE EXTRACTED GAS THEREIN AN AIR-GAS MIXTURE OF KNOWN VOLUME, ELEVATING THE MERCURY LEVEL IN THE CHAMBER TO THEREBY DISPLACE THE MIXTURE FROM THE CHAMBER, AND DETERMINING THE PROPORTION OF HYDROCARBON GAS IN SAID MIXTURE.
Claim 2
Independent Claim
113 words
THE METHOD OF DETERMINING THE HYDROCARBON GAS CONTENT OF A SOLID EARTH FORMATION CORE, COMPRISING INTRODUCING THE CORE INTO A CHAMBER CONTAINING A BODY OF LIQUID MERCURY, COMPLETELY DISPLACING EXTRANCOUS AIR FROM THE CHAMBER WITH THE MERCURY, THEREAFTER SEALING THE CHAMBER, THEN LOWERING THE MERCURY LEVEL WHEREBY TO CREATE IN THE CHAMBER A VACUUM SUFFICIENT TO WITHDRAW THE GAS FROM THE CORE INTO THE CHAMBER, INTRODUCING AIR FROM OUTSIDE THE CHAMBER INTO THE EVACUATED CHAMBER TO FORM WITH THE EXTRACTED GAS THEREIN AN AIR-GAS MIXTURE OF KNOWN VOLUME, ELEVATING THE MERCURY LEVEL IN THE CHAMBER TO THEREBY DISPLACE THE MIXTURE FROM THE CHAMBER, AND DETERMINING THE PROPORTION OF HYDROCARBON GAS IN SAID MIXTURE.
References Cited (Backward Citations)
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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) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |