US3705024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel distribution in a gasoline engine
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1971-06-30
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Granted: 1972-12-05
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Expires: 1991-06-30
Abstract
Abstract A TERTIARY DIAMINE HAVING ONE LONG ALIPHATIC HYDROCARBON GROUP AND ONE SHORT ALKYL GROUP ATTACHED TO EACH NITROGEN ATOM OF THE DIAMINE, WHEN ADDED IN MINOR PROPORTION TO A GASOLINE, WILL IMPROVE THE DISTRIBUTION OF THE AIR/FUEL MIXTURE IN THE INTAKE MANIFOLD OF A MULTICYLINDER GASOLINE ENGINE THAT IS RUN WITH THE RESULTING BLEND THEREBY INCREASING OPERATING EFFICIENCY. A REPRESENTATIVE DIAMINE IS DIMETHYL DIOCTADECYL ETHYLENE DIAMINE.
Inventors
- 👤 Abraham A Zimmerman
- 👤 Louis E Furlong
- 👤 Hugh F Shannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:53
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |