US2553183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel oil composition
Assignee: Shell Development Co
•
Filing: 1948-07-03
•
Granted: 1951-05-15
•
Expires: 1968-07-03
Abstract
No abstract record available.
Inventors
- 👤 John B R Caron
- 👤 Wies Calmy
- 👤 Everett B Glendenning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:14
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/232
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A NON-CLOGGING FUEL OIL CONTAINING ENTRAINED MOSITURE AND NORMALLY SUSCEPTIBLE TO CAUSE CLOGGING CONTAINING IN COMBINATION THEREWITH FROM ABOUT 0.0025% TO ABOUT 0.005% OF 1-AMINOETHYL2-HEPTADECENYL GLYOXALIDINE.
Claim 2
Dependent Claim
26 words
A NON-CLOGGING FUEL OIL CONTAINING ENTRAINED MOSITURE AND NORMALLY SUSCEPTIBLE TO CAUSE CLOGGING CONTAINING IN COMBINATION THEREWITH FROM ABOUT 0.0025% TO ABOUT 0.005% OF 1-AMINOETHYL2-HEPTADECENYL GLYOXALIDINE.
References Cited (Backward Citations)
US2249626A
Cited
US2369490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |