Patent US3386327A successfully refreshed from Google Patents.
US3029136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized distillate fuel oils
Assignee: Gulf Research and Development Co
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Filing: 1955-10-05
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Granted: 1962-04-10
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Expires: 1975-10-05
Abstract
No abstract record available.
Inventors
- 👤 Earl E Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:48
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C10L1/22; C10L1/222; C10L1/2222; C10L1/26; C10L1/2633; C10L1/2658
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A FUEL OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF A MIXTURE OF CATALYTICALLY CRACKED AND STRAIGHT RUN DISTILLATE FUEL OILS TENDING TO DEPOSIT SLUDGE AND A SMALL AMOUNT, SUFFICIENT TO INHIBIT DEPOSITION OF SLUDGE FROM SAID MIXTURE OF OILS, OF A QUARTERNARY AMMONIUM SALT WHEREIN TWO OF THE COVALENT N-BONDS ARE ATTACHED TO ALIPHATIC HYDROCARBON SUBSTITUENTS CONTAINING 8 TO 22 CARBON ATOMS AND THE REMAINING COVALENT N-BONDS ARE ATTACHED TO SATURATED ALIPHATIC HYDROCARBON RADICALS CONTAINING 1 TO 4 CARBON ATOMS, AND WHEREINTHE IONIC NBOND IS ATTACHED TO AN ANIONIC SALT-FORMING RADICAL DERIVED FROM A MATERIAL SELEECTED FROM THE GROUP CONSISTING OF (A) OIL-SOLUBLE ORGANIC MONOCARBOXYLIC ACIDS CONTAINING 7 TO 30 CARBON ATOMS PER MOLECULE, (B) OIL-SOLUBLE MONOHYDRIC PHENOLS HAVING ATTACHED TO THE AROMATIC NUCLEUS ONE TO THREE HYDROCARBON SUBSTITUENTS CONTAINING AT LEAST 4 CARBON ATOMS, AND HAVING NOT MORE THAN ONE SUBSTITUENT IN THE ORTHO POSITION THAT CONTAINS MORE THAN ONE CARBON ATOM, AND (C) OIL-SOLUBLE ACID ESTERS OF O-PHOSPHORIC ACID HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
165 words
A FUEL OIL COMPOSITION COMPRISING A MAJOR PROPORTION OF A MIXTURE OF CATALYTICALLY CRACKED AND STRAIGHT RUN DISTILLATE FUEL OILS TENDING TO DEPOSIT SLUDGE AND A SMALL AMOUNT, SUFFICIENT TO INHIBIT DEPOSITION OF SLUDGE FROM SAID MIXTURE OF OILS, OF A QUARTERNARY AMMONIUM SALT WHEREIN TWO OF THE COVALENT N-BONDS ARE ATTACHED TO ALIPHATIC HYDROCARBON SUBSTITUENTS CONTAINING 8 TO 22 CARBON ATOMS AND THE REMAINING COVALENT N-BONDS ARE ATTACHED TO SATURATED ALIPHATIC HYDROCARBON RADICALS CONTAINING 1 TO 4 CARBON ATOMS, AND WHEREINTHE IONIC NBOND IS ATTACHED TO AN ANIONIC SALT-FORMING RADICAL DERIVED FROM A MATERIAL SELEECTED FROM THE GROUP CONSISTING OF (A) OIL-SOLUBLE ORGANIC MONOCARBOXYLIC ACIDS CONTAINING 7 TO 30 CARBON ATOMS PER MOLECULE, (B) OIL-SOLUBLE MONOHYDRIC PHENOLS HAVING ATTACHED TO THE AROMATIC NUCLEUS ONE TO THREE HYDROCARBON SUBSTITUENTS CONTAINING AT LEAST 4 CARBON ATOMS, AND HAVING NOT MORE THAN ONE SUBSTITUENT IN THE ORTHO POSITION THAT CONTAINS MORE THAN ONE CARBON ATOM, AND (C) OIL-SOLUBLE ACID ESTERS OF O-PHOSPHORIC ACID HAVING THE GENERAL FORMULA:
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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) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |