US3085866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel oil compositions of improved combustion characteristics
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1959-02-19
•
Granted: 1963-04-16
•
Expires: 1979-02-19
Abstract
No abstract record available.
Inventors
- 👤 Gay Raymond
- 👤 Siganos Emmanuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:10
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
AN IMPROVED LIQUID HYDROCARBON FUEL OIL COMPOSITION WHICH NORMALLY HAS A STRONG TENDENCY TO GIVE EXHAUST SMOKE IN A DIESEL ENGINE TO WHICH HAS BEEN ADDED A SMOKE REDUCING MIXTURE OF FROM 20 TO 80% BY WEIGHT OF AN OIL SOLUBLE LEAD SULPHONATE AND FROM 20 TO 80% BY WEIGHT OF AN OIL SOLUBLE TIN SULPHONATE, BOTH OF SAID SULFONATES BEING DERIVED FROM SULFONIC ACIDS HAVING A MOLECULAR WEIGHT IN EXCESS OF 400 AND SAID MIXTURE BE-
Claim 2
Dependent Claim
77 words
AN IMPROVED LIQUID HYDROCARBON FUEL OIL COMPOSITION WHICH NORMALLY HAS A STRONG TENDENCY TO GIVE EXHAUST SMOKE IN A DIESEL ENGINE TO WHICH HAS BEEN ADDED A SMOKE REDUCING MIXTURE OF FROM 20 TO 80% BY WEIGHT OF AN OIL SOLUBLE LEAD SULPHONATE AND FROM 20 TO 80% BY WEIGHT OF AN OIL SOLUBLE TIN SULPHONATE, BOTH OF SAID SULFONATES BEING DERIVED FROM SULFONIC ACIDS HAVING A MOLECULAR WEIGHT IN EXCESS OF 400 AND SAID MIXTURE BE-
References Cited (Backward Citations)
US2141848A
Cited
US2151432A
Cited
US2258297A
Cited
US2296069A
Cited
US2560542A
Cited
US2591503A
Cited
US2789892A
Cited
GB776189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |