Patent US2728644A successfully refreshed from Google Patents.
US2728644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline inhibited against corrosion
Assignee: TIDE WATER ASSOCIATED OIL Co
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Filing: 1952-04-01
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Granted: 1955-12-27
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Expires: 1972-04-01
Abstract
No abstract record available.
Inventors
- 👤 Vaughn Samuel Clyde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:27
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/223; C10L1/26; C10L1/2633; C10L1/2658
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A COMPLETELY HOMOGENEOUS, CORROSION-RESISTANT AVIATION FUEL, HAVING A HIGH RICH MIXTURE ANTI-KNOCK RATING, COMPRISING GASOLINE CONTAINING SUFFICIENT AROMATIC AMINE FROM THE GROUP CONSISTING OF ANILINE AND HOMOLOGS OF ANILINE TO SUBSTANTIALLY INCREASE THE RICH MIXTURE ANTIKNOCK PROPERTIES OF THE GASOLINE AND BETWEEN 0.002% AND 0.05% BY WEIGHT OF THE FINISHED GASOLINE OF THE ADDITION PRODUCT RESULTING FROM CONTACTING AN ALKYL ACID PHOSPHATE HAVING FROM 8 TO 16 CARBON ATOMS PER ALKYL GROUP WITH BETWEEN 100% AND 150% OF THE QUANTITY THEORETICALLY REQUIRED TO NEUTRALIZE SAID PHOSPHATE OF AN IMIDAZOLE SELECTED FROM THE GROUP CONSISTING OF 1-METHYL, 2 HEPTADECYL, 4,5-DIHYDROIMIDAZOLE; 1-ETHYL, 2-HEPTADECYL, 4,5DIHYDROIMIDAZOLE; AND, 1-PROPYL, 2-HEPTADECYL, 4,5-DIHYDROIMIDAZOLE.
Claim 2
Dependent Claim
106 words
A COMPLETELY HOMOGENEOUS, CORROSION-RESISTANT AVIATION FUEL, HAVING A HIGH RICH MIXTURE ANTI-KNOCK RATING, COMPRISING GASOLINE CONTAINING SUFFICIENT AROMATIC AMINE FROM THE GROUP CONSISTING OF ANILINE AND HOMOLOGS OF ANILINE TO SUBSTANTIALLY INCREASE THE RICH MIXTURE ANTIKNOCK PROPERTIES OF THE GASOLINE AND BETWEEN 0.002% AND 0.05% BY WEIGHT OF THE FINISHED GASOLINE OF THE ADDITION PRODUCT RESULTING FROM CONTACTING AN ALKYL ACID PHOSPHATE HAVING FROM 8 TO 16 CARBON ATOMS PER ALKYL GROUP WITH BETWEEN 100% AND 150% OF THE QUANTITY THEORETICALLY REQUIRED TO NEUTRALIZE SAID PHOSPHATE OF AN IMIDAZOLE SELECTED FROM THE GROUP CONSISTING OF 1-METHYL, 2 HEPTADECYL, 4,5-DIHYDROIMIDAZOLE; 1-ETHYL, 2-HEPTADECYL, 4,5DIHYDROIMIDAZOLE; AND, 1-PROPYL, 2-HEPTADECYL, 4,5-DIHYDROIMIDAZOLE.
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) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |