US2918359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor fuel
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1957-06-17
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Granted: 1959-12-22
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Expires: 1977-06-17
Abstract
No abstract record available.
Inventors
- 👤 William E Lovett
- 👤 Elbert D Nostrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:39
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/182; C10L1/1822; C10L1/1824; C10L1/22; C10L1/222; C10L1/224
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A GASOLINE HAVING INCORPORATED THEREIN FROM ABOUT 0.4 TO 18% BY VOLUME OF ISOPROPANOL AND FROM ABOUT 0.01 TO 0.095% BY VOLUME OF N.M-DIMETHYL FORMAMIDE, THE ISOPROPANOL CONCENTRATION BEING FROM 10 TO 30 TIMES THE N,N-DIMETHYL FORMAMIDE CONCENTRTION.
Claim 2
Dependent Claim
38 words
A GASOLINE HAVING INCORPORATED THEREIN FROM ABOUT 0.4 TO 18% BY VOLUME OF ISOPROPANOL AND FROM ABOUT 0.01 TO 0.095% BY VOLUME OF N.M-DIMETHYL FORMAMIDE, THE ISOPROPANOL CONCENTRATION BEING FROM 10 TO 30 TIMES THE N,N-DIMETHYL FORMAMIDE CONCENTRTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |