Patent US3206400A successfully refreshed from Google Patents.
US3206400A
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US
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Mineral oil composition
Assignee: Shell USA Inc
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Filing: 1960-10-10
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Granted: 1965-09-14
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Expires: 1980-10-10
Abstract
No abstract record available.
Inventors
- 👤 Dervin L Flowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:02
CPC Classifications
C; C10; C10M; C10M151/00; C10M151/02; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/16; C08F220/18; C08F220/1812; C08F220/1818; C08F28/00; C08L; C08L41/00; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/24; C10L1/2462; C10L1/2468; C10M2201/00; C10M2201/02; C10M2201/08; C10M2201/082; C10M2201/083; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/04; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/026; C10M2207/027; C10M2207/10; C10M2207/14; C10M2207/144; C10M2207/146; C10M2207/28; C10M2207/282; C10M2207/284; C10M2207/285; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/101; C10M2209/103; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/044; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/08; C10M2219/082; C10M2219/086; C10M2221/00; C10M2221/02; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/045; C10M2223/12; C10M2225/00; C10M2225/04; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/08; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
AN IMPROVED MINERAL LUBRICATING OIL COMPRISING A MAJOR AMOUNT OF MINERAL LUBRICATING OIL AND FROM ABOUT 0.1% TO 10% BY WEIGHT OF A COPOLYMER OF STEARYL METHACRYLATE AND HYDROXY ETHYL VINYL SULFIDE IN THE MOL RATIO OF 1:3 TO 5:1, RESPECTIVELY, AND SUCH THAT THE END PRODUCT CONTAINING AT LEAST 8 UNITS SELECTED FROM THE ESTER AND VINYL SULFIDE UNIT AND AT LEAST 2 OF EACH GROUP BEING PRESENT IN THE END PRODUCT, SAID CPOLYMER HAVING A MOLECULAR WEIGHT FROM ABOUT 10000 TO ABOUT 6000000.
Claim 2
Dependent Claim
22 words
THE COMPOSITION OF CLAIM 4 CONTAINING FROM ABOUT 0.1% TO ABOUT 0.5% BY WEIGHT EACH OF 4,4''-METHYLENE BIS(2,3-DITERTBUTYL PHENOL) AND TRICRESYL PHOSPHATE.
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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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |