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US3041284A Expired / Lapsed US ⏱️ 0.0 years remaining

Lubricating compositions

Assignee: Shell USA Inc
•
Filing: 1958-08-08
•
Granted: 1962-06-26
•
Expires: 1978-08-08
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Abstract

No abstract record available.

Inventors

  • 👤 George M Calhoun
  • 👤 William A Hewett

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 05:50
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/06; C10M2203/10; C10M2205/00; C10M2205/14; C10M2205/16; C10M2205/17; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/023; C10M2207/027; C10M2207/04; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/128; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/289; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/107; C10M2209/108; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/084; C10M2219/085; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2020/00; C10N2020/01; C10N2030/00; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 26 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF MINERAL LUBRICATING OIL AND FROM ABOUT 0.5% TO ABOUT 20% OF AN OIL-SOLUBLE POLYTHIAETHER HAVING THE FORMULA
Claim 2
Dependent Claim 26 words
A LUBRICATING OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF MINERAL LUBRICATING OIL AND FROM ABOUT 0.5% TO ABOUT 20% OF AN OIL-SOLUBLE POLYTHIAETHER HAVING THE FORMULA

References Cited (Backward Citations)

US701993A Cited
US2317666A Cited
US2449996A Cited
US2649416A Cited
US2644793A Cited
US2737525A Cited
US2884379A Cited
US2892852A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1965-06-25 1965-12-25 1966-06-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1969-06-25 1969-12-25 1970-06-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1973-06-25 1973-12-25 1974-06-26 $7700.00 Window Closed / Lapsed

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