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US3634240A
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Rust inhibitors comprising lithium salts
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1970-08-19
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Granted: 1972-01-11
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Expires: 1990-08-19
Abstract
Abstract THE LITHIUM SALTS OF HYDROCARBON-SUBSITUTED SUCCINIC ANHYDRIDE, WHEREIN THE HYDROCARBON SUBSITUENT IS AN ALIPHATIC HYDROCARBON GROUP HAVING ABOUT 9 TO ABOUT 30 CARBON ATOMS, ARE EFFECTIVE AS RUST AND CORROSION INHIBITORS IN LUBRICATING OIL COMPOSITIONS. THESE SALTS ARE RENDERED MORE OIL-SOLUBLE BY COMBINING THEM WITH ALKYL PHENOLS.
Inventors
- 👤 Rosemary O'halloran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:30
CPC Classifications
C; C10; C10M; C10M129/00; C10M129/02; C10M129/26; C10M129/28; C10M129/30; C10M129/34; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/12; C10M2203/00; C10M2203/10; C10M2203/108; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/282; C10M2207/30; C10M2207/302; C10M2207/32; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/101; C10M2209/103; C10M2209/104; C10M2209/11; C10M2209/111; C10M2211/00; C10M2211/02; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/062; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/044; C10M2217/045; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2223/12; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2030/00; C10N2030/08; C10N2030/12; C10N2040/00; C10N2040/02; C10N2040/08; C10N2040/12; C10N2040/13; C10N2040/135; C10N2070/00; C10N2070/02
Claims Analysis
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References Cited (Backward Citations)
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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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |