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US2084531A Expired / Lapsed US ⏱️ 0.0 years remaining

Steam cylinder oil and process of preparing the same

Assignee: ASSOCIATED OIL Co
•
Filing: 1930-10-31
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Granted: 1937-06-22
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Expires: 1950-10-31
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Abstract

No abstract record available.

Inventors

  • 👤 Lazar Arthur
  • 👤 Joseph V Crenna

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 20:07
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2207/40; C10M2207/404; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/135

Claims Analysis

Total Claims: 0
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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) 1940-06-21 1940-12-21 1941-06-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1944-06-21 1944-12-21 1945-06-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1948-06-21 1948-12-21 1949-06-22 $7700.00 Window Closed / Lapsed

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