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US2730499A Expired / Lapsed US ⏱️ 0.0 years remaining

Lubricants for heavy journal bearings operating at elevated temperatures

Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1951-08-01
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Granted: 1956-01-10
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Expires: 1971-08-01
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Abstract

No abstract record available.

Inventors

  • 👤 Oldrich S Pokorny

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 16:27
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/129; C10M2207/22; C10M2211/00; C10M2211/02; C10M2211/04; C10M2211/044; C10M2211/06; C10M2211/08; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/085; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10N; C10N2040/00; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2073841A Cited
US2203102A Cited
US2442672A Cited
US2349044A Cited
US2472503A Cited
US2477356A Cited
US2459717A Cited
US2474604A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1959-01-09 1959-07-11 1960-01-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1963-01-09 1963-07-11 1964-01-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1967-01-09 1967-07-11 1968-01-10 $7700.00 Window Closed / Lapsed

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