US2560898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel composition
Assignee: Phillips Petroleum Co
•
Filing: 1950-07-24
•
Granted: 1951-07-17
•
Expires: 1970-07-24
Abstract
No abstract record available.
Inventors
- 👤 Walter A Schulze
- 👤 John E Mahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:58
CPC Classifications
C; C10; C10L; C10L1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
AN IMPROVED FUEL COMPOSITION HAVING GASOLINE CHARACTERIZED WHICH CONSISTS ESSENTIALLY OF ISOPARAFFINIC HYDROCARBONS HAVING BETWEEN 5 AND 9 CARBON ATOMS PER MOLECULE; AND FROM 1 TO 20 VOLUME PER CENT OF AT LEAST ONE SUBSTITUTED PYRIDINE HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
40 words
AN IMPROVED FUEL COMPOSITION HAVING GASOLINE CHARACTERIZED WHICH CONSISTS ESSENTIALLY OF ISOPARAFFINIC HYDROCARBONS HAVING BETWEEN 5 AND 9 CARBON ATOMS PER MOLECULE; AND FROM 1 TO 20 VOLUME PER CENT OF AT LEAST ONE SUBSTITUTED PYRIDINE HAVING THE STRUCTURAL FORMULA
References Cited (Backward Citations)
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US2407716A
Cited
US2401983A
Cited
US2409157A
Cited
US2409156A
Cited
US2407717A
Cited
US2406667A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |