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Patent US3018173A successfully refreshed from Google Patents.
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US3018173A Expired / Lapsed US ⏱️ 0.0 years remaining

Stabilization of hydrocarbons

Assignee: Universal Oil Products Co
•
Filing: 1957-04-26
•
Granted: 1962-01-23
•
Expires: 1977-04-26
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Abstract

No abstract record available.

Inventors

  • 👤 Henry A Cyba

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 23:52
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C08G59/4042; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222; C10L1/2225; C10L1/234; C10L1/238; C10L1/2383; C10L1/2387; C10M2201/00; C10M2201/02; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10N; C10N2030/00; C10N2030/12; C10N2040/00; 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

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 54 words
A HYDROCARBON DISTILLATE NORMALLY TENDING TO DETERIORATE CONTAINING A STABILIZING CONCENTRATION OF AN INHIBITOR PREPARED FIRST BY THE REDUCTIVE ALKYLATION AT A TEMPERATURE OF FROM ABOUT 80* TO ABOUT 300*C. OF AN EQUIMOLAR PROPORTION OF A KETONE CONTAINING FROM 8 TO ABOUT 40 CARBON ATOMS AND AN AMINOALKYL ALKANOLAMINE OF THE FOLLOWING GENERAL FORMULA

References Cited (Backward Citations)

US2385518A Cited
US2353192A Cited
US2388255A Cited
US2464291A Cited
US2533723A Cited
US2547493A Cited
US2547497A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1965-01-22 1965-07-24 1966-01-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1969-01-22 1969-07-24 1970-01-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1973-01-22 1973-07-24 1974-01-23 $7700.00 Window Closed / Lapsed

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