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US2571332A
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Thiophenethiol-phosphorus halide reaction products in lubricating compositions
Assignee: ExxonMobil Oil Corp
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Filing: 1947-12-30
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Granted: 1951-10-16
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Expires: 1967-12-30
Abstract
No abstract record available.
Inventors
- 👤 John W Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:01
CPC Classifications
C; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M137/105; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6553; C07F9/655345; C10M2207/00; C10M2207/40; C10M2207/404; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/047; C10N; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A MINERAL LUBRICATING OIL CONTAINING A SMALL PROPORTION, SUFFICIENT TO STABILIZE SAID OIL AGAINST OXIDATION OF A REACTION PRODUCT OBTAINED BY REACTING FROM ABOUT 1 MOL TO ABOUT 3 MOLS OF A THIOPHENETHIOL WITH 1 MOL OF A PHOSPHORUS HALIDE, AT TEMPERATURES OF FROM ABOUT 15* C. TO ABOUT 150* C.
Claim 2
Dependent Claim
51 words
A MINERAL LUBRICATING OIL CONTAINING A SMALL PROPORTION, SUFFICIENT TO STABILIZE SAID OIL AGAINST OXIDATION OF A REACTION PRODUCT OBTAINED BY REACTING FROM ABOUT 1 MOL TO ABOUT 3 MOLS OF A THIOPHENETHIOL WITH 1 MOL OF A PHOSPHORUS HALIDE, AT TEMPERATURES OF FROM ABOUT 15* C. TO ABOUT 150* C.
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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) | 1954-10-15 | 1955-04-16 | 1955-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-15 | 1959-04-16 | 1959-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-15 | 1963-04-16 | 1963-10-16 | $7700.00 | Window Closed / Lapsed |