US3649538A
Expired / Lapsed
US
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Diol-containing aluminum lubricant
Assignee: Chevron USA Inc
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Filing: 1969-12-29
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Granted: 1972-03-14
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Expires: 1989-12-29
Abstract
Abstract A PROCESS FOR LUBRICATING ALUMINUM AND ALUMINUM ALLOYS BY APPLYING TO THE METAL SURFACE A LUBIRCANT COMPRISING A MAJOR PORTION OF A CARRIER FLUID, SUCH AS MINERAL OIL, HYDROCARBON OIL, HALOGENATED OR OXYGENATED HYDROCARBONS, OR WATER, AND A MINOR PORTION OF A C10-C30 A- OR B-DIOL. THE DIOL IS PRESENT AS 0.1-30 VOLUME PERCENT OF THE LUBRICANT.
Inventors
- 👤 Bruce W Hotten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:29
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2203/00; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/023; C10M2207/025; C10M2207/04; C10M2207/042; C10M2207/044; C10M2207/08; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/289; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/109; C10M2209/12; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/024; C10M2211/04; C10M2211/042; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2217/00; C10M2217/04; C10M2217/044; C10M2217/045; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2040/00; C10N2040/02; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01; C10N2060/00; C10N2060/04
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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |