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US2437348A
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Process for the refining of hydrocarbon oil containing mercaptans
Assignee: Universal Oil Products Co
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Filing: 1944-11-04
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Granted: 1948-03-09
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Expires: 1964-11-04
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Brown
- 👤 Clarence G Gerhold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:44
CPC Classifications
C; C10; C10G; C10G19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2205126A
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US2238201A
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US2317053A
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US2297866A
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US2269467A
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US2309651A
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US2309654A
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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) | 1951-03-09 | 1951-09-08 | 1952-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-09 | 1955-09-08 | 1956-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-09 | 1959-09-08 | 1960-03-09 | $7700.00 | Window Closed / Lapsed |