US2425777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the extraction of mercaptans from hydrocarbon oil
Assignee: Standard Oil Co
•
Filing: 1945-08-22
•
Granted: 1947-08-19
•
Expires: 1965-08-22
Abstract
No abstract record available.
Inventors
- 👤 Chester E Adams
- 👤 Theodore B Tom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:09
CPC Classifications
C; C10; C10G; C10G19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2015038A
Cited
US2186398A
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US2212106A
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US2273104A
Cited
US2381859A
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US2369771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-18 | 1951-02-17 | 1951-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-18 | 1955-02-17 | 1955-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-18 | 1959-02-17 | 1959-08-19 | $7700.00 | Window Closed / Lapsed |