Patent US2793945A successfully refreshed from Google Patents.
US2793945A
Expired / Lapsed
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Residual fuels
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1954-01-11
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Granted: 1957-05-28
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Expires: 1974-01-11
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Walker
- 👤 George S Tobias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:16
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2691
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A RESIDUAL FUEL OIL CONTAINING FROM 0.001 TO 3.0 WT. PERCENT OF VANADIUM, EXPRESSED AS V2O5, AND AN AMOUNT OF A HYDROCARBON-SOLUBLE , PHOSPHORUS-CONTAINING ORGANIC COMPOSITION SUFFICIENT TO PROVIDE FROM 1:1 TO 5:1 MOLS OF PHOSPHORUS PER MOL OF VANADIUM WITHIN THE FUEL.
Claim 2
Dependent Claim
43 words
A RESIDUAL FUEL OIL CONTAINING FROM 0.001 TO 3.0 WT. PERCENT OF VANADIUM, EXPRESSED AS V2O5, AND AN AMOUNT OF A HYDROCARBON-SOLUBLE , PHOSPHORUS-CONTAINING ORGANIC COMPOSITION SUFFICIENT TO PROVIDE FROM 1:1 TO 5:1 MOLS OF PHOSPHORUS PER MOL OF VANADIUM WITHIN THE FUEL.
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) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |