Patent US2630959A successfully refreshed from Google Patents.
Patent US2794767A successfully refreshed from Google Patents.
US2794767A
Expired / Lapsed
US
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Refining process including regeneration of used alkaline reagents
Assignee: Universal Oil Products Co
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Filing: 1954-11-03
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Granted: 1957-06-04
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Expires: 1974-11-03
Abstract
No abstract record available.
Inventors
- 👤 William K T Gleim
- 👤 Urban Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:44
CPC Classifications
C; C10; C10G; C10G19/00; C10G19/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
54 words
IN THE REMOVAL OF SULFUR COMPOUNDS FROM HYDROCARBON DISTILLATE BY TREATMENT WITH CAUSTIC SOLUTION WHICH IS THEN SEPARATED FROM THE TREATED DISTILLATE, THE METHOD OF REGENERATING THE SEPARATE CAUSTIC SOLUTION CONTAINING SULFUR COMPOUNDS WHICH COMPRISES SUBJECTING THE SAME TO OXIDATION IN THE PRESENCE OF CHARCOAL CATALYST AND IN THE ABSENCE OF THE TREATED DISTILLATE.
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) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |