Patent US4897657A successfully refreshed from Google Patents.
Patent US3402033A successfully refreshed from Google Patents.
US3402033A
Expired / Lapsed
US
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Solid fuel compositions
Assignee: Mobil Oil AS
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Filing: 1967-08-28
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Granted: 1968-09-17
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Expires: 1987-08-28
Abstract
No abstract record available.
Inventors
- 👤 William C Starr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:31
CPC Classifications
C; C10; C10L; C10L5/00; C10L5/02; C10L5/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
IN A METHOD FOR PREPARING A FUEL COMPOSITION COMPRISING A MAJOR PROPORTION OF PETROLEUM COKE AND MINOR PROPORTIONS OF WOOD-SAWDUST, CHARCOAL, AN OXIDIZING AGENT CAPABLE OF SUPPORTING COMBUSTION OF A BINDER; AND WHEREIN SAID COMPOSITION IS SUBJECTED TO AN EXTRUSION OPERATON, THE IMPROVEMENT WHICH COMPRISES INCORPORATING IN SAID COMPOSITION, PRIOR TO EXTRUSION, A NON-HYDRATABLE CLAY IN AN AMOUNT SUFFICIENT TO PREVENT PLUGGING OF THE DIE FACE FURING EXTRUSION OF SAID FLUE COMPOSITION.
References Cited (Backward Citations)
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Cited
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US1050535A
Cited
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Cited
US2017402A
Cited
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Cited
US2175342A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |