Patent US3049414A successfully refreshed from Google Patents.
US3049414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color-stable gasoline
Assignee: Individual
•
Filing: 1959-07-15
•
Granted: 1962-08-14
•
Expires: 1979-07-15
Abstract
No abstract record available.
Inventors
- 👤 Kruyff Piet Cornelis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:50
CPC Classifications
C; C10; C10G; C10G53/00; C10G67/00; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A PROCESS FOR STABILIZING THE COLOR OF GASOLINE, SAID GASOLINE COMPRISING GASOLINE PREPARED BY CATALYTIC CRACKING; COMPRISING WASHING SAID GASOLINE WITH A FIRST LIQUID CAPABLE OF DISSOLVING PYRIDINE SELECTED FROM THE GROUP CONSISTING OF WATER, AQUEOUS MINERAL ACID, LIQUID SULFUR DIOXIDE, LIQUID HYDROFLUORIC ACID, DIMETHYL SULFOXIDE AND FURFURAL, SAID FIRST LIQUID BEING SUBSTANTIALLY FREE OF MEMBERS SELECTED FROM THE GROUP CONSISTING OF THE METALS IN GROUPS IIIB, IVB, VB, VIB, VIII, IB, IIB, IIIA, IVA, VA, AND VIA; THEN WASHING SAID GASOLINE WITH A SECOND LIQUID COMPRISING AN ALKALINE AQUEOUS SOLUTION, SAID SECCOND LIQUID BEING SUBSTANTIALLY FREE OF MEMBERS SELECTED FROM THE GROUP CONSISTING OF THE METALS IN GROUPS IIIB, IVB, VB, VIII, IB, IIB, IIIA, IVA, VA, VIA; THEN REMOVING SUBSTANTIALLY ALL OF THE FREE ALKALI; AND THEN ADDING A NITROGENOUS ORGANIC BASE, ALL OF WHOSE CARBON-CARBON BONDS ARE SATURATED, TO SAID GASOLINE AS A STABILIZER.
Claim 2
Dependent Claim
147 words
A PROCESS FOR STABILIZING THE COLOR OF GASOLINE, SAID GASOLINE COMPRISING GASOLINE PREPARED BY CATALYTIC CRACKING; COMPRISING WASHING SAID GASOLINE WITH A FIRST LIQUID CAPABLE OF DISSOLVING PYRIDINE SELECTED FROM THE GROUP CONSISTING OF WATER, AQUEOUS MINERAL ACID, LIQUID SULFUR DIOXIDE, LIQUID HYDROFLUORIC ACID, DIMETHYL SULFOXIDE AND FURFURAL, SAID FIRST LIQUID BEING SUBSTANTIALLY FREE OF MEMBERS SELECTED FROM THE GROUP CONSISTING OF THE METALS IN GROUPS IIIB, IVB, VB, VIB, VIII, IB, IIB, IIIA, IVA, VA, AND VIA; THEN WASHING SAID GASOLINE WITH A SECOND LIQUID COMPRISING AN ALKALINE AQUEOUS SOLUTION, SAID SECCOND LIQUID BEING SUBSTANTIALLY FREE OF MEMBERS SELECTED FROM THE GROUP CONSISTING OF THE METALS IN GROUPS IIIB, IVB, VB, VIII, IB, IIB, IIIA, IVA, VA, VIA; THEN REMOVING SUBSTANTIALLY ALL OF THE FREE ALKALI; AND THEN ADDING A NITROGENOUS ORGANIC BASE, ALL OF WHOSE CARBON-CARBON BONDS ARE SATURATED, TO SAID GASOLINE AS A STABILIZER.
References Cited (Backward Citations)
US2062201A
Cited
US2071064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |