Patent US3006741A successfully refreshed from Google Patents.
US3006741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor fuels
Assignee: Standard Oil Co
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Filing: 1958-03-31
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Granted: 1961-10-31
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Expires: 1978-03-31
Abstract
No abstract record available.
Inventors
- 👤 Frederick K Kawahara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:03
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/223; C10L1/224
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A STABILIZED HYDROCARBON LIGHT DISTILLATE NORMALLY SUSCEPTIBLE TO OXIDATIVE GUM FORMATION, CONTAINING IN COMBINATION FROM ABOUT 0.001% TO 1.0% OF A PARA-PHENYLENE DIAMINE INHIBITOR SELECTED FROM THE GROUP CONSISTING OF PARA-PHENYLENE DIAMINE, N-SECBUTYL-PARA-PHENYLENE DIAMINE, N,N''-DI-SECBUTYL-PARA-PHENYLENE DIAMINE, N-T-BUTYL-PARA-PHENYLENE DIAMINE, N-HEXY-PARA-PHENYLENE DIAMINE AND N-DODECYL-PARA-PHENYLENE DIAMINE AND FROM ABOUT 0.001 TO 1.0% OF A PERFLUOROALKYL-AMIDO-TERTIARYAMINE SYNERGIST HAVING THE GENERAL STRUCTURE
Claim 2
Dependent Claim
57 words
A STABILIZED HYDROCARBON LIGHT DISTILLATE NORMALLY SUSCEPTIBLE TO OXIDATIVE GUM FORMATION, CONTAINING IN COMBINATION FROM ABOUT 0.001% TO 1.0% OF A PARA-PHENYLENE DIAMINE INHIBITOR SELECTED FROM THE GROUP CONSISTING OF PARA-PHENYLENE DIAMINE, N-SECBUTYL-PARA-PHENYLENE DIAMINE, N,N''-DI-SECBUTYL-PARA-PHENYLENE DIAMINE, N-T-BUTYL-PARA-PHENYLENE DIAMINE, N-HEXY-PARA-PHENYLENE DIAMINE AND N-DODECYL-PARA-PHENYLENE DIAMINE AND FROM ABOUT 0.001 TO 1.0% OF A PERFLUOROALKYL-AMIDO-TERTIARYAMINE SYNERGIST HAVING THE GENERAL STRUCTURE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |