Patent US2843467A successfully refreshed from Google Patents.
US2843467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel oils
Assignee: Gulf Research and Development Co
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Filing: 1954-05-10
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Granted: 1958-07-15
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Expires: 1974-05-10
Abstract
No abstract record available.
Inventors
- 👤 Albert G Rocchini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:24
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A FUEL OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A RESIDUAL FUEL OIL YIELDING A CORROSIVE VANADIUM-CONTAINING ASH UPON COMBUSTION, AND A SMALL AMOUNT, SUFFICIENT TO RETARD THE CORROSIVENESS OF SAID ASH, OF A COMPOUND SELECTED FROM THE CLASS CONSISTING OF OIL-SOLUBLE AND OIL-DISPERSIBLE ORGANIC SILICON COMPOUNDS.
Claim 2
Dependent Claim
47 words
A FUEL OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A RESIDUAL FUEL OIL YIELDING A CORROSIVE VANADIUM-CONTAINING ASH UPON COMBUSTION, AND A SMALL AMOUNT, SUFFICIENT TO RETARD THE CORROSIVENESS OF SAID ASH, OF A COMPOUND SELECTED FROM THE CLASS CONSISTING OF OIL-SOLUBLE AND OIL-DISPERSIBLE ORGANIC SILICON COMPOUNDS.
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) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |