US2866694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-clogging fuel oil compositions
Assignee: Shell Development Co
•
Filing: 1950-09-02
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Granted: 1958-12-30
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Expires: 1970-09-02
Abstract
No abstract record available.
Inventors
- 👤 Everett B Glendenning
- 👤 Wies Calmy
- 👤 John B R Caron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:55
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/24; C10L1/2431; C10L1/2437
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A NON-CLOGGING FUEL OIL CONSISTIING ESSENTIALLY OF A FUEL, OIL, NORMALLY SUSCEPTIBLE TO CAUSE CLOGGING DUE TO THE PRESSURE OF CRACKED COMPONENTS IN THE FUEL OIL, AND CONTAINING IN COMBINATION THEREWITH A MINOR AMOUNT SUFFICIENT TO INHIBIT SAID CLOGGING OF AN OIL-SOLUBLE POLYVALENT METAL ORGANIC SULFONATE.
Claim 2
Dependent Claim
46 words
A NON-CLOGGING FUEL OIL CONSISTIING ESSENTIALLY OF A FUEL, OIL, NORMALLY SUSCEPTIBLE TO CAUSE CLOGGING DUE TO THE PRESSURE OF CRACKED COMPONENTS IN THE FUEL OIL, AND CONTAINING IN COMBINATION THEREWITH A MINOR AMOUNT SUFFICIENT TO INHIBIT SAID CLOGGING OF AN OIL-SOLUBLE POLYVALENT METAL ORGANIC SULFONATE.
References Cited (Backward Citations)
US2141848A
Cited
US2161317A
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US2296069A
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US2316739A
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US2575003A
Cited
US2626207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |