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US2897152A Expired / Lapsed US ⏱️ 0.0 years remaining

Lubricating oils

Assignee: CC Wakefield and Co Ltd
•
Filing: 1957-03-04
•
Granted: 1959-07-28
•
Expires: 1977-03-04
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Abstract

No abstract record available.

Inventors

  • 👤 Elliott John Scotchford
  • 👤 Edwards Eric Descamp

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 12:10
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/20; C07D295/21; C10; C10M; C10M135/00; C10M135/12; C10M135/14; C10M135/16; C10M135/18; C10M2203/00; C10M2203/10; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/22; C10M2207/28; C10M2207/283; C10M2207/287; C10M2207/288; C10M2207/289; C10M2211/00; C10M2211/08; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/083; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10N; C10N2010/00; C10N2010/04; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/02; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/135

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 27 words
A LUBRICATING COMPOSITION CONSISTING ESSENTIALLY OF A MINERAL LUBRICATING OIL BSE CONTAINING FROM 0.05 PERCENT UP TO 10 PERCENT BY WEIGHT OF A COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim 27 words
A LUBRICATING COMPOSITION CONSISTING ESSENTIALLY OF A MINERAL LUBRICATING OIL BSE CONTAINING FROM 0.05 PERCENT UP TO 10 PERCENT BY WEIGHT OF A COMPOUND HAVING THE FORMULA:

References Cited (Backward Citations)

US2160880A Cited
US2160851A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1962-07-27 1963-01-26 1963-07-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1966-07-27 1967-01-26 1967-07-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1970-07-27 1971-01-26 1971-07-28 $7700.00 Window Closed / Lapsed

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