US2996366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable fuel oil compositions
Assignee: Gulf Research and Development Co
•
Filing: 1954-08-12
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Granted: 1961-08-15
•
Expires: 1974-08-12
Abstract
No abstract record available.
Inventors
- 👤 Arthur V Churchill
- 👤 Mitchell Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:21
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A FUEL OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF A MIXTURE OF STRAIGHT RUN AND CATALYTICALLY CRACKED DISTILLATE FUEL OILS TENDING TO DEPOSIT SLUDGE AND CONTAINING A SMALL AMOUNT OF AN OIL-SOLUBLE SALT OF A CARBOXYLIC ACID THAT CONTAINS 1 TO 2 CARBOXYL GROUPS AND AT LEAST 8 CARBON ATOMS PER MOLECULE, AND A COMPOUND OF THE TYPE INDICATED BY THE GENERAL FORMULA:
Claim 2
Dependent Claim
63 words
A FUEL OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF A MIXTURE OF STRAIGHT RUN AND CATALYTICALLY CRACKED DISTILLATE FUEL OILS TENDING TO DEPOSIT SLUDGE AND CONTAINING A SMALL AMOUNT OF AN OIL-SOLUBLE SALT OF A CARBOXYLIC ACID THAT CONTAINS 1 TO 2 CARBOXYL GROUPS AND AT LEAST 8 CARBON ATOMS PER MOLECULE, AND A COMPOUND OF THE TYPE INDICATED BY THE GENERAL FORMULA:
References Cited (Backward Citations)
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Cited
US2688595A
Cited
US2700612A
Cited
US2684292A
Cited
US2736641A
Cited
US2736658A
Cited
US2771348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |