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US2481585A Expired / Lapsed US ⏱️ 0.0 years remaining

Lubricating oil composition

Assignee: Individual
•
Filing: 1945-09-17
•
Granted: 1949-09-13
•
Expires: 1965-09-17
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Abstract

No abstract record available.

Inventors

  • 👤 Michael W Freeman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 22:18
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M2201/00; C10M2201/02; C10M2201/04; C10M2201/041; C10M2201/042; C10M2201/08; C10M2201/082; C10M2201/083; C10M2201/10; C10M2201/102; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/40; C10M2207/404; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/024; C10M2211/04; C10M2211/042; C10M2211/06; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/20; C10M2215/202; C10M2215/204; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/04; C10M2219/042; C10M2219/044; C10M2223/00; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/10; C10N2010/12; C10N2010/14; C10N2010/16; C10N2040/00; C10N2040/02; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/135; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US722507A Cited
US1985687A Cited
US1892650A Cited
US2049043A Cited
US2303348A Cited
US2239720A Cited
US2340112A Cited
US2382699A Cited
US2355995A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1952-09-12 1953-03-14 1953-09-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1956-09-12 1957-03-14 1957-09-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1960-09-12 1961-03-14 1961-09-13 $7700.00 Window Closed / Lapsed

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