Patent US3047373A successfully refreshed from Google Patents.
US3047373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel oils having improved combustion characteristics
Assignee: Gulf Research and Development Co
•
Filing: 1959-12-21
•
Granted: 1962-07-31
•
Expires: 1979-12-21
Abstract
No abstract record available.
Inventors
- 👤 Robert J Mcguire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:09
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/192; C10L1/198; C10L1/1985
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A FUEL OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A HYDROCARBON FUEL OIL THAT HAS AN APL GRAVILY LESS THAN 34* AND AN AROMATICS CONTENT GREATER THAN 20 PERCENT AND THAT NORMALLY TENDS TO FORM SMOKE AND SOOT DURING COMBUSTION, AND CONTAINING AN AMOUNT SUFFICIENT TO REDUCE THE SMOKE AND SOOT FORMING TENDENCIES OF THE OIL IN THE RANGE OF ABOUT 0.01 TO 0.1 PERCENT BY WEIGHT OF THE OIL OF AN ESTER OF A FATTY ACID CONTAINING 12 TO 18 CARBON ATOMS PER MOLECULE AND A POLYOXYETHYLENE GLYCOL WHOSE AVERAGE MOLECULAR WEIGHT IS ABOUT 380 TO 630.
Claim 2
Dependent Claim
98 words
A FUEL OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A HYDROCARBON FUEL OIL THAT HAS AN APL GRAVILY LESS THAN 34* AND AN AROMATICS CONTENT GREATER THAN 20 PERCENT AND THAT NORMALLY TENDS TO FORM SMOKE AND SOOT DURING COMBUSTION, AND CONTAINING AN AMOUNT SUFFICIENT TO REDUCE THE SMOKE AND SOOT FORMING TENDENCIES OF THE OIL IN THE RANGE OF ABOUT 0.01 TO 0.1 PERCENT BY WEIGHT OF THE OIL OF AN ESTER OF A FATTY ACID CONTAINING 12 TO 18 CARBON ATOMS PER MOLECULE AND A POLYOXYETHYLENE GLYCOL WHOSE AVERAGE MOLECULAR WEIGHT IS ABOUT 380 TO 630.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |