US3025147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonstalling gasoline composition
Assignee: Gulf Research and Development Co
•
Filing: 1958-08-01
•
Granted: 1962-03-13
•
Expires: 1978-08-01
Abstract
No abstract record available.
Inventors
- 👤 Gardner E Gaston
- 👤 Donald W Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:59
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222; C10L1/2225; C10L1/24; C10L1/2431; C10L1/2437
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A GASOLINE MOTOR FUEL COMPOSITION COMPRISING A MAJOR AMOUNT OF A HYDROCARBON MIXTURE BOILING IN THE GASOLINE RANGE AND THAT NORMALLY TENDS TO PROMOTE STALLING OF INTERNAL COMBUSTION ENGINES, AND A SMALL AMOUNT, SUFFICIENT TO REDUCE THE ENGINE STALLING CHARACTERISTICS OF THE COMPOSITION OF A MEMBER SELECTED FORM THE GROUP CONSISTING OF ADDITION SALTS OF STABILIZED ROSIN AMINE AND AN OIL-SOLUBLE HYDROCARBON SULFONIC ACID, AND POLYOXYALKYLENE DERIVATIVES OF STABILIZED ROSIN AMINE CONTAINING ABOUT 4 TO 20 OXYYALKYLENE GROUPS PER MOLECULE, WHERE SAID OXYALKYLENE GROUPS CONTAIN TWO TO THREE CARBON ATOMS EACH.
Claim 2
Dependent Claim
91 words
A GASOLINE MOTOR FUEL COMPOSITION COMPRISING A MAJOR AMOUNT OF A HYDROCARBON MIXTURE BOILING IN THE GASOLINE RANGE AND THAT NORMALLY TENDS TO PROMOTE STALLING OF INTERNAL COMBUSTION ENGINES, AND A SMALL AMOUNT, SUFFICIENT TO REDUCE THE ENGINE STALLING CHARACTERISTICS OF THE COMPOSITION OF A MEMBER SELECTED FORM THE GROUP CONSISTING OF ADDITION SALTS OF STABILIZED ROSIN AMINE AND AN OIL-SOLUBLE HYDROCARBON SULFONIC ACID, AND POLYOXYALKYLENE DERIVATIVES OF STABILIZED ROSIN AMINE CONTAINING ABOUT 4 TO 20 OXYYALKYLENE GROUPS PER MOLECULE, WHERE SAID OXYALKYLENE GROUPS CONTAIN TWO TO THREE CARBON ATOMS EACH.
References Cited (Backward Citations)
US2484010A
Cited
US2706677A
Cited
US2684292A
Cited
US2883276A
Cited
GB791394A
Cited
US2872303A
Cited
US2843464A
Cited
US2857253A
Cited
US2862800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |