US2594311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of carbonyl sulfide from liquefied petroleum gas
Assignee: California Research LLC
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Filing: 1949-04-23
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Granted: 1952-04-29
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Expires: 1969-04-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Johnson
- 👤 Daniel H Condit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:25
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/148; C07C7/14875; B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/485
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
THE METHOD OF REMOVING CARBONYL SULFIDE FROM PETROLEUM HYDROCARBON GASES CONTAINING CARBONYL SULFIDE AND SUBSTANTIALLY FREE OF OTHER SULFUR-CONTAINING COMPOUNDS, WHICH COMPRISES INTIMATELY DISPERSING SAID HYDROCARBON GASES IN LIQUID PHASE IN AN AQUEOUS SOLUTION OF MONOETHANOLAMINE AND AN ALKALI METAL HYDROXIDE PRESENT IN THE SOLUTION IN THE PROPORTIONS OF 3-6 MOLS OF ALKALI METAL HYDROXIDE PER MOL OF MONOETHANOLAMINE.
Claim 2
Independent Claim
59 words
THE METHOD OF REMOVING CARBONYL SULFIDE FROM PETROLEUM HYDROCARBON GASES CONTAINING CARBONYL SULFIDE AND SUBSTANTIALLY FREE OF OTHER SULFUR-CONTAINING COMPOUNDS, WHICH COMPRISES INTIMATELY DISPERSING SAID HYDROCARBON GASES IN LIQUID PHASE IN AN AQUEOUS SOLUTION OF MONOETHANOLAMINE AND AN ALKALI METAL HYDROXIDE PRESENT IN THE SOLUTION IN THE PROPORTIONS OF 3-6 MOLS OF ALKALI METAL HYDROXIDE PER MOL OF MONOETHANOLAMINE.
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) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |