US3057153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vanadium-containing petroleum fuels modified with thorium and alkali metal additives
Assignee: Gulf Research and Development Co
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Filing: 1960-06-21
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Granted: 1962-10-09
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Expires: 1980-06-21
Abstract
No abstract record available.
Inventors
- 👤 Albert G Rocchini
- 👤 Charles E Trautman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:52
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/12; C10L1/14; C10L1/18; C10L1/182; C10L1/1828; C10L1/188; C10L1/24; C10L1/2406; C10L1/2412; C10L1/2431; C10L1/2437
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A FUEL COMPOSITION COMPRISING A UNIFORM BLEND OF A MAJOR AMOUNT OF A RESIDUAL PETROLEUM FUEL YIELDING A CORROSIVE VANADIUM-CONTAINING ASH UPON COMBUSION, AN AMOUNT OF A VANADIUM-FREE THORIUM COMPOUND YIELDING ABOUT 0.5 TO 2 ATOM WEIGHTS OF THORIUM PER ATOM WEIGHT OF VANADIUM IN SAID FUEL, AND AN AMOUNT OF A VANADIUM-FREE ALKALI METAL COMPOUND YIELDING ABOUT 0.5 TO 2 ATOM WEIGHTS OF ALKALI METAL PER ATOM WEIGHT OF VANADIUN IN SAID FUEL, THE TOTAL AMOUNT OF THORIUM AND ALKALI METAL RANGING FROM ABOUT 1 TO 4 ATOM WEIGHT PER ATOM WEIGHT OF VANADIUM.
Claim 2
Dependent Claim
95 words
A FUEL COMPOSITION COMPRISING A UNIFORM BLEND OF A MAJOR AMOUNT OF A RESIDUAL PETROLEUM FUEL YIELDING A CORROSIVE VANADIUM-CONTAINING ASH UPON COMBUSION, AN AMOUNT OF A VANADIUM-FREE THORIUM COMPOUND YIELDING ABOUT 0.5 TO 2 ATOM WEIGHTS OF THORIUM PER ATOM WEIGHT OF VANADIUM IN SAID FUEL, AND AN AMOUNT OF A VANADIUM-FREE ALKALI METAL COMPOUND YIELDING ABOUT 0.5 TO 2 ATOM WEIGHTS OF ALKALI METAL PER ATOM WEIGHT OF VANADIUN IN SAID FUEL, THE TOTAL AMOUNT OF THORIUM AND ALKALI METAL RANGING FROM ABOUT 1 TO 4 ATOM WEIGHT PER ATOM WEIGHT OF VANADIUM.
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) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |