US3083087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted benzyl esters in leaded gasoline
Assignee: Sinclair Research Inc
•
Filing: 1959-12-17
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Granted: 1963-03-26
•
Expires: 1979-12-17
Abstract
No abstract record available.
Inventors
- 👤 Willis C Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:32
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
50 words
A LEADED GASOLINE CONSISTING ESSENTIALLY OF BASE HYDROCARBON GASOLINE CONTAINING AT LEAST ABOUT 10 VOLUME PERCENT OF UNSATURATED HYDROCARBONS, A SMALL AMOUNT OF LOWER-ALKYL LEAD ANTI-KNOCK AGENT SUFFICIENT TO REDUCE KNOCK AND ABOUT 2 TO 100 MOLES PER MOLE OF LEAD COMPOUND OF A GASOLONE COMPATIBLE ESTER OF THE FORMULA
Claim 2
Dependent Claim
50 words
A LEADED GASOLINE CONSISTING ESSENTIALLY OF BASE HYDROCARBON GASOLINE CONTAINING AT LEAST ABOUT 10 VOLUME PERCENT OF UNSATURATED HYDROCARBONS, A SMALL AMOUNT OF LOWER-ALKYL LEAD ANTI-KNOCK AGENT SUFFICIENT TO REDUCE KNOCK AND ABOUT 2 TO 100 MOLES PER MOLE OF LEAD COMPOUND OF A GASOLONE COMPATIBLE ESTER OF THE FORMULA
References Cited (Backward Citations)
US1692784A
Cited
GB277326A
Cited
US2210942A
Cited
FR837965A
Cited
US2228662A
Cited
US2360585A
Cited
US2384866A
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 |