Patent US3497334A successfully refreshed from Google Patents.
US3497334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid hydrocarbon combustion fuels
Assignee: Mobil Oil AS
•
Filing: 1963-12-16
•
Granted: 1970-02-24
•
Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 Paul Y C Gee
- 👤 Harry J Andress Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:33
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/221
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A LIQUID HYDROCARBON COMBUSTION FUEL CONTAINING FROM ABOUT 1 TO ABOUT 200 POUNDS PER THOUSAND BARRELS OF FUEL OF AN ADDITIVE COMPOSITION COMPRISING THE CONDENSATION PRODUCT OBTAINED BY REACTING AN ALKENYL SUCCINIC ACID OR ANHYDRIDE HAVING FROM ABOUT 8 TO ABOUT 35 CARBON ATOMS IN THE ALKENYL GROUP THEREOF WITH A POLYAMINE HAVING THE FORMULA H2N (-R-NH)N-H, WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF ETHYLENE AND PROPYLENE AND N IS AN INTEGER VARYING FROM 1 TO 6, AND SALICYLALDEHYDE.
Claim 2
Dependent Claim
81 words
A LIQUID HYDROCARBON COMBUSTION FUEL CONTAINING FROM ABOUT 1 TO ABOUT 200 POUNDS PER THOUSAND BARRELS OF FUEL OF AN ADDITIVE COMPOSITION COMPRISING THE CONDENSATION PRODUCT OBTAINED BY REACTING AN ALKENYL SUCCINIC ACID OR ANHYDRIDE HAVING FROM ABOUT 8 TO ABOUT 35 CARBON ATOMS IN THE ALKENYL GROUP THEREOF WITH A POLYAMINE HAVING THE FORMULA H2N (-R-NH)N-H, WHEREIN R IS SELECTED FROM THE GROUP CONSISTING OF ETHYLENE AND PROPYLENE AND N IS AN INTEGER VARYING FROM 1 TO 6, AND SALICYLALDEHYDE.
References Cited (Backward Citations)
US2638450A
Cited
US3280034A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |