US2632696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized hydrocarbon fuel oils
Assignee: Gulf Oil Corp
•
Filing: 1950-08-28
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Granted: 1953-03-24
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Expires: 1970-08-28
Abstract
No abstract record available.
Inventors
- 👤 Herschel G Smith
- 👤 Troy L Cantrell
- 👤 John G Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:41
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/221
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A FUEL OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A HYDROCARBON FUEL OIL AND A MINOR AMOUNT, SUFFICIENT TO STABILIZE THE FUEL OIL AGAINST THE FORMATION OF SLUDGE, OF (1) THE REACTION PRODUCT PREPARED BY REACTING AN AQUEOUS SLURRY OF 1 MOL OF A METAL HYDROXIDE SELECTED FROM THE GROUP CONSISTING OF BARIUM, STRONTIUM, MAGNESIUM AND CALCIUM HYDROXIDES WITH FROM 2 TO 4 MOLS OF FORMALDEHYDE AT A TEMPERATURE NOT EXCEEDING 200* F. AND CONDENSING THE RESULTING PRODUCT WITH FROM 0.5 TO 1 MOL OF ANILINE AND FROM 2 TO 4 MOLS OF A MONO-ALKYL PHENOL HAVING FROM 4 TO 12 CARBON ATOMS IN THE ALKYL SUBSTITUENT, AND (2) THE REACTION PRODUCT PREPARED BY REACTING, AT A TEMPERATURE NOT EXCEEDING 200* F., 1 MOL OF AMMONIUM HYDROXIDE WITH FROM 1 TO 5 MOLS OF FORMALDEHYDE AND FROM 1 TO 4 MOLS OF A MONOALKYL PHENOL HAVING FROM 4 TO 12 CARBON ATOMS IN THE ALKYL SUBSTITUENT, THE WEIGHT RATIO OF PRODUCT (1) TO PRODUCT (2) RANGING FROM ABOUT 1:4 TO 4:1.
Claim 2
Dependent Claim
171 words
A FUEL OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A HYDROCARBON FUEL OIL AND A MINOR AMOUNT, SUFFICIENT TO STABILIZE THE FUEL OIL AGAINST THE FORMATION OF SLUDGE, OF (1) THE REACTION PRODUCT PREPARED BY REACTING AN AQUEOUS SLURRY OF 1 MOL OF A METAL HYDROXIDE SELECTED FROM THE GROUP CONSISTING OF BARIUM, STRONTIUM, MAGNESIUM AND CALCIUM HYDROXIDES WITH FROM 2 TO 4 MOLS OF FORMALDEHYDE AT A TEMPERATURE NOT EXCEEDING 200* F. AND CONDENSING THE RESULTING PRODUCT WITH FROM 0.5 TO 1 MOL OF ANILINE AND FROM 2 TO 4 MOLS OF A MONO-ALKYL PHENOL HAVING FROM 4 TO 12 CARBON ATOMS IN THE ALKYL SUBSTITUENT, AND (2) THE REACTION PRODUCT PREPARED BY REACTING, AT A TEMPERATURE NOT EXCEEDING 200* F., 1 MOL OF AMMONIUM HYDROXIDE WITH FROM 1 TO 5 MOLS OF FORMALDEHYDE AND FROM 1 TO 4 MOLS OF A MONOALKYL PHENOL HAVING FROM 4 TO 12 CARBON ATOMS IN THE ALKYL SUBSTITUENT, THE WEIGHT RATIO OF PRODUCT (1) TO PRODUCT (2) RANGING FROM ABOUT 1:4 TO 4:1.
References Cited (Backward Citations)
US2348638A
Cited
US2431011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |