Patent US3083088A successfully refreshed from Google Patents.
US3083088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leaded gasoline containing aromaticsubstituted esters
Assignee: Sinclair Research Inc
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Filing: 1960-06-15
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Granted: 1963-03-26
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Expires: 1980-06-15
Abstract
No abstract record available.
Inventors
- 👤 Dennis R Carlson
- 👤 Everett N Case
- 👤 Seymour H Patinkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:21
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/19; C10L1/20; C10L1/201; C10L1/30; C10L1/305; C10L1/306
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A LEADED GASOLINE CONSISTING ESSENTIALLY OF BASE HYDROCARBON GASOLINE CONTAINING AT LEAST ABOUT 30% AROMATIC HYDROCARBONS, A SMALL AMOUNT OF LOWER ALKYL LEAD ANTI KNOCK AGENT SUFFICEINT TO REDUCE KNOCK AND ABOUT 1 TO 50 MOLES PER MOLE OF LEAD COMPOUND AND SUFFICIENT TO IMPROVE THE OCTANE RATING OF THE LEADED GASOLINE OF A GASOLINE-COMPATIBLE ARYL SUBSTITUTED LOWER ALKYL ESTER OF A LOWER CARBOXYLIC ACID OF UP TO ABOUT 20 CARBON ATOMS AND HAVING THE FORMULA:
Claim 2
Dependent Claim
76 words
A LEADED GASOLINE CONSISTING ESSENTIALLY OF BASE HYDROCARBON GASOLINE CONTAINING AT LEAST ABOUT 30% AROMATIC HYDROCARBONS, A SMALL AMOUNT OF LOWER ALKYL LEAD ANTI KNOCK AGENT SUFFICEINT TO REDUCE KNOCK AND ABOUT 1 TO 50 MOLES PER MOLE OF LEAD COMPOUND AND SUFFICIENT TO IMPROVE THE OCTANE RATING OF THE LEADED GASOLINE OF A GASOLINE-COMPATIBLE ARYL SUBSTITUTED LOWER ALKYL ESTER OF A LOWER CARBOXYLIC ACID OF UP TO ABOUT 20 CARBON ATOMS AND HAVING THE FORMULA:
References Cited (Backward Citations)
BE571921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |