US2755388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for detecting hydrocarbon gas
Assignee: ExxonMobil Oil Corp
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Filing: 1951-12-12
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Granted: 1956-07-17
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Expires: 1971-12-12
Abstract
No abstract record available.
Inventors
- 👤 Paul B Weisz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:45
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A METHOD FOR THE DETECTION OF HYDROCARBONS IN A SOIL GAS SAMPLE WHICH COMPRISES SUBJECTING A MIXTURE OF ARGON AND A SOIL GAS SAMPLE TO ELECTRICAL EXCITATION TO GIVE RISE TO METASTABLE STATES OF ARGON, DISCONTINUING EXCITATION OF THE ARGON, AND OBSERVING THE RATE OF DISAPPEARANCE OF THE METASTABLE STATES OF ARGON IN THE PRESENCE OF THE SOIL GAS SAMPLE IN COMPARISON WITH THE RATE OF DISAPPEARANCE OF THE METASTABLE STATES OF ARGON UNDER CONDITIONS SIMILAR EXCEPT FOR THE ABSENCE OF THE SOIL GAS SAMPLE.
Claim 2
Independent Claim
85 words
A METHOD FOR THE DETECTION OF HYDROCARBONS IN A SOIL GAS SAMPLE WHICH COMPRISES SUBJECTING A MIXTURE OF ARGON AND A SOIL GAS SAMPLE TO ELECTRICAL EXCITATION TO GIVE RISE TO METASTABLE STATES OF ARGON, DISCONTINUING EXCITATION OF THE ARGON, AND OBSERVING THE RATE OF DISAPPEARANCE OF THE METASTABLE STATES OF ARGON IN THE PRESENCE OF THE SOIL GAS SAMPLE IN COMPARISON WITH THE RATE OF DISAPPEARANCE OF THE METASTABLE STATES OF ARGON UNDER CONDITIONS SIMILAR EXCEPT FOR THE ABSENCE OF THE SOIL GAS SAMPLE.
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) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |