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US2526041A
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US
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Hydrocarbon oil lubricant containing di-tertiary-alkyl sulfides
Assignee: Sharples Chemicals Inc
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Filing: 1944-12-06
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Granted: 1950-10-17
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Expires: 1964-12-06
Abstract
No abstract record available.
Inventors
- 👤 John F Olin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:30
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2219/00; C10M2219/08; C10M2219/082; C10N; C10N2040/00; C10N2040/20; C10N2040/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
33 words
AN IMPROVED LUBRICANT COMPRISING A MAJOR PROPORTION OF A HYDROCARBON OIL AND MINOR BUT SUFFICIENT PROPORTION TO STABILIZE THE HYDROCARBON OIL AGAINST OXIDATION, OF AN ADDED ORGANIC SULFIDE COMPOUND COMPRISING DI-TERTIARY DODECYL DISULFIDE.
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) | 1953-10-16 | 1954-04-17 | 1954-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-16 | 1958-04-17 | 1958-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-16 | 1962-04-17 | 1962-10-17 | $7700.00 | Window Closed / Lapsed |