US2341918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing mercaptans from hydrocarbon oil
Assignee: Pure Oil Co
•
Filing: 1941-09-15
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Granted: 1944-02-15
•
Expires: 1961-09-15
Abstract
No abstract record available.
Inventors
- 👤 Lawrence M Henderson
- 👤 Jr George W Ayers
- 👤 Timothy L Mc-Namara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:48
CPC Classifications
C; C10; C10G; C10G19/00; C10G19/02; C10G19/04; C10G29/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-02-14 | 1947-08-16 | 1948-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-02-14 | 1951-08-16 | 1952-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-02-14 | 1955-08-16 | 1956-02-15 | $7700.00 | Window Closed / Lapsed |