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Patent US2905541A successfully refreshed from Google Patents.
US2905541A
Expired / Lapsed
US
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Stable distillate fuel oil compositions
Assignee: Gulf Oil Corp
•
Filing: 1953-07-31
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Granted: 1959-09-22
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Expires: 1973-07-31
Abstract
No abstract record available.
Inventors
- 👤 Ralph I Gottshall
- 👤 Jr Mark L Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:18
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/11; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222; C10L1/26; C10L1/2633; C10L1/2658
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A STABLE FUEL OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A MIXTURE OF STRAIGHT RUN AND CATALYTICALLY CRACKED DISTILLATE FUEL OIL TENDING TO DEPOSIT SLUDGE AND A MINOR AMOUNT, SUFFICIENT TO INHIBIT SLUDGE DEPOSITION, OF A COMBINATION OF (1) AN AMINE SALT OF (A) AN ALIPHATIC AMINE WHOSE N-SUBSTITUENTS ARE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND HYDROCARBON RADICALS CONTAINING FROM 4 TO 30 CARBON ATOMS EACH AND8 (B) A DIAKYL ORTHOPHOSPHORIC ACID WHOSE ALKYL SUCSTITUENTS CONTAIN FROM 3 TO 18 CARBON ATOMS. AND (II) AN AMINE OF THE SAME CLASS AS THAT COMBINED IN THE AMINE SALT, THE WEIGHT RATIO OF AMINE TO AMINE SALT BEING FROM ABOUT 1:2 TO ABOUT 2:1
Claim 2
Dependent Claim
114 words
A STABLE FUEL OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A MIXTURE OF STRAIGHT RUN AND CATALYTICALLY CRACKED DISTILLATE FUEL OIL TENDING TO DEPOSIT SLUDGE AND A MINOR AMOUNT, SUFFICIENT TO INHIBIT SLUDGE DEPOSITION, OF A COMBINATION OF (1) AN AMINE SALT OF (A) AN ALIPHATIC AMINE WHOSE N-SUBSTITUENTS ARE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND HYDROCARBON RADICALS CONTAINING FROM 4 TO 30 CARBON ATOMS EACH AND8 (B) A DIAKYL ORTHOPHOSPHORIC ACID WHOSE ALKYL SUCSTITUENTS CONTAIN FROM 3 TO 18 CARBON ATOMS. AND (II) AN AMINE OF THE SAME CLASS AS THAT COMBINED IN THE AMINE SALT, THE WEIGHT RATIO OF AMINE TO AMINE SALT BEING FROM ABOUT 1:2 TO ABOUT 2:1
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |