US3255572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extraction of acidic components from gas mixtures
Assignee: Union Oil Company of California
•
Filing: 1962-12-11
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Granted: 1966-06-14
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Expires: 1982-12-11
Abstract
No abstract record available.
Inventors
- 👤 Loren N Miller
- 👤 Orrin C Holbrook
- 👤 Byron B Woertz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:28
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/08; C10K1/16; B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
THE PROCESS OF REMOVING GASEOUS ACID GAS SELECTED FROM THE GROUP CONSISTING OF CARBON DIOXIDE AND HYDROGEN SULFIDE FROM ADMIXTURE WITH GASEOUS C1-C3 ALKANE HYDROCARBONS WHICH COMPRISES CONTACTING SAID GASEOUS ADMIXTURE WITH A LIQUID SOLVENT CONSISTING ESSENTIALLY OF NITROMETHANE, UNDER CONDITIONS RESULTING IN SELECTIVE ABSORPTION OF SAID ACID GAS, AND SEPARATING THE UNABSORBED COMPONENTS OF SAID GASEOUS ADMIXTURE FROM SAID SOLVENT.
Claim 2
Dependent Claim
61 words
THE PROCESS OF REMOVING GASEOUS ACID GAS SELECTED FROM THE GROUP CONSISTING OF CARBON DIOXIDE AND HYDROGEN SULFIDE FROM ADMIXTURE WITH GASEOUS C1-C3 ALKANE HYDROCARBONS WHICH COMPRISES CONTACTING SAID GASEOUS ADMIXTURE WITH A LIQUID SOLVENT CONSISTING ESSENTIALLY OF NITROMETHANE, UNDER CONDITIONS RESULTING IN SELECTIVE ABSORPTION OF SAID ACID GAS, AND SEPARATING THE UNABSORBED COMPONENTS OF SAID GASEOUS ADMIXTURE FROM SAID SOLVENT.
References Cited (Backward Citations)
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CA596693A
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US2139375A
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US2863527A
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GB728444A
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GB750399A
Cited
US2781863A
Cited
US2926751A
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US3097917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |