Patent US3070429A successfully refreshed from Google Patents.
US3070429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid hydrocarbon fuel compositions
Assignee: Gulf Research and Development Co
•
Filing: 1960-06-06
•
Granted: 1962-12-25
•
Expires: 1980-06-06
Abstract
No abstract record available.
Inventors
- 👤 Elizabeth L Fareri
- 👤 Jr John P Pellegrini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:00
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/234; C10L1/236; C10L1/2366
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A LIQUID HYDROCARBON FUEL COMPOSITION COMPRISING A MAJOR AMOUNT OF A LIQUID HYDROCARBON FUEL DISTILLATE AND A SMALL AMOUNT, SUFFICIENT TO REDUCE THE DEPOSIT-FORMING TENDENCIES OF THE FUEL, OF AN OIL-SOLUBLE COPOLYMER OF (A) A MOMONERIC ALKYL ESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC AND METHACRYLIC ACID WHOSE ALKUL ESTER SUBSTITUENT CONTAINS 8 TO 18 CARBON ATOMNS, AND (B) A MONOMERIC SALT FORMED FROM SUBSTANTIALLY EQUIVALENT PROPORTIONS OF AN ACID SELECTED FROM THE AFORESAID GROUP AND AN AMINE HAVING AS AT LEAST ONE N-SUBSTITUENT AN ALIPHATIC HYDROCARBON RADICAL CONTAINING 8 TO 18 CARBON ATOMS, AND AS THE OTHER N-SUBSTITUENTS MEMBERS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALIPHATIC HYDROCARBON RADICAL CONTAINING 1 TO 18 CARBON ATOMS AND ALKYOL GROUPS CONTAINING 1 TO 4 CARBON ATOMS, SAID MONOMERIC AMINE SALT AND SAID MONOMERIC ALKYL ESTER BEING COPOLYMERIZED IN A WEIGHT RATIO IN THE RANGE OF ABPUT 0.03:1 TO 1;1.
Claim 2
Dependent Claim
152 words
A LIQUID HYDROCARBON FUEL COMPOSITION COMPRISING A MAJOR AMOUNT OF A LIQUID HYDROCARBON FUEL DISTILLATE AND A SMALL AMOUNT, SUFFICIENT TO REDUCE THE DEPOSIT-FORMING TENDENCIES OF THE FUEL, OF AN OIL-SOLUBLE COPOLYMER OF (A) A MOMONERIC ALKYL ESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC AND METHACRYLIC ACID WHOSE ALKUL ESTER SUBSTITUENT CONTAINS 8 TO 18 CARBON ATOMNS, AND (B) A MONOMERIC SALT FORMED FROM SUBSTANTIALLY EQUIVALENT PROPORTIONS OF AN ACID SELECTED FROM THE AFORESAID GROUP AND AN AMINE HAVING AS AT LEAST ONE N-SUBSTITUENT AN ALIPHATIC HYDROCARBON RADICAL CONTAINING 8 TO 18 CARBON ATOMS, AND AS THE OTHER N-SUBSTITUENTS MEMBERS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALIPHATIC HYDROCARBON RADICAL CONTAINING 1 TO 18 CARBON ATOMS AND ALKYOL GROUPS CONTAINING 1 TO 4 CARBON ATOMS, SAID MONOMERIC AMINE SALT AND SAID MONOMERIC ALKYL ESTER BEING COPOLYMERIZED IN A WEIGHT RATIO IN THE RANGE OF ABPUT 0.03:1 TO 1;1.
References Cited (Backward Citations)
US2892690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |