Patent US2340425A successfully refreshed from Google Patents.
Patent US3039860A successfully refreshed from Google Patents.
US3039860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-substituted-alkenylsuccinimides in distillate fuels
Assignee: ExxonMobil Oil Corp
•
Filing: 1959-06-18
•
Granted: 1962-06-19
•
Expires: 1979-06-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry J Andress
- 👤 Paul Y C Gee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:58
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/408; C07D207/412; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/224; C10L1/234; C10L1/238; C10L1/2383
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A PETROLEUM DISTILLATE FUEL CONTAINING BETWEEN ABOUT ONE POUND PER THOUSAND BARRELS OF FUEL AND ABOUT 200 POUNDS PER THOUSAND BARRELS OF FUEL OF AT LEAST ONE MATERIAL SELECTED FROM THE GROUP CONSISTING OF (1) N-CARBOXYMETHYL-ALKENYL-SUCCINIMIDES, CONTAINING BETWEEN ABOUT 8 CARBON ATOMS AND ABOUT 35 CARBON ATOMS IN THE ALKENYL GROUP THEREOF, (2) N-(O-CARBOXYPHENYL)-ALKENYLSUCCINIMIDES CONTAINING BEWTEEN ABOUT 8 CARBON ATOMS AND ABOUT 35 CARBON ATOMS IN THE ALKENYL GROUP THEREOF, AND (3) AMINE SALTS OF (1) AND (2) WITH TERTIARYALKYL PRIMARY AMINES HAVING A TERTIARY CARBON ATOM ATTACHED TO THE NITROGEN ATOM AND HAVING BETWEEN ABOUT 6 CARBON ATOMS AND ABOUT 30 CARBON ATOMS PER MOLECULE.
Claim 2
Dependent Claim
106 words
A PETROLEUM DISTILLATE FUEL CONTAINING BETWEEN ABOUT ONE POUND PER THOUSAND BARRELS OF FUEL AND ABOUT 200 POUNDS PER THOUSAND BARRELS OF FUEL OF AT LEAST ONE MATERIAL SELECTED FROM THE GROUP CONSISTING OF (1) N-CARBOXYMETHYL-ALKENYL-SUCCINIMIDES, CONTAINING BETWEEN ABOUT 8 CARBON ATOMS AND ABOUT 35 CARBON ATOMS IN THE ALKENYL GROUP THEREOF, (2) N-(O-CARBOXYPHENYL)-ALKENYLSUCCINIMIDES CONTAINING BEWTEEN ABOUT 8 CARBON ATOMS AND ABOUT 35 CARBON ATOMS IN THE ALKENYL GROUP THEREOF, AND (3) AMINE SALTS OF (1) AND (2) WITH TERTIARYALKYL PRIMARY AMINES HAVING A TERTIARY CARBON ATOM ATTACHED TO THE NITROGEN ATOM AND HAVING BETWEEN ABOUT 6 CARBON ATOMS AND ABOUT 30 CARBON ATOMS PER MOLECULE.
References Cited (Backward Citations)
US1941689A
Cited
US2182178A
Cited
US2490744A
Cited
US2604451A
Cited
US2657215A
Cited
US2699427A
Cited
US2788349A
Cited
US2839371A
Cited
US2832790A
Cited
US2745841A
Cited
US2917376A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |