US2874094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid coking process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1955-03-23
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Granted: 1959-02-17
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Expires: 1975-03-23
Abstract
No abstract record available.
Inventors
- 👤 Jr John Frederick Moser
- 👤 Dunlop Donald Dunwody
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:33
CPC Classifications
C; C10; C10B; C10B55/00; C10B55/02; C10B55/04; C10B55/08; C10B55/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN THE FLUID COKING PROCESS WHEREIN THE NATURAL GROWTH OF THE CONTACT SOLIDS OF THE FLUIDIZED COKING BED IS COUNTERACTED BY REMOVING CONTACT SOLIDS FROM THE FLUIDIZED COKING BED, COMMINUTING REMOVED SOLIDS TO REDUCE THEIR PARTICLE SIZE, AND RETURNED SO COMMINUTED SOLIDS TO SAID FLUIDIZED BED, THE IMPROVEMEMT WHICH COMPRISES WITHDRAWING SAID CONTACT SOLIDS FROM THE UPPER PORTION OF SAID FLUID COKING BED WHEREIN THERE IS CONTAINED A HIGH PROPORTION OF FINE PARTICLES AND FRESHLY FORMED AGGLOMERATES, AND SUBJECTING SAID FRESHLY FORMED AGGLOMERATES TO COMMUTION WHEREBY PARTICLE SIZE REDUCTION IS ACCOMPLISHED WITH REDUCED EFFORT.
Claim 2
Dependent Claim
94 words
IN THE FLUID COKING PROCESS WHEREIN THE NATURAL GROWTH OF THE CONTACT SOLIDS OF THE FLUIDIZED COKING BED IS COUNTERACTED BY REMOVING CONTACT SOLIDS FROM THE FLUIDIZED COKING BED, COMMINUTING REMOVED SOLIDS TO REDUCE THEIR PARTICLE SIZE, AND RETURNED SO COMMINUTED SOLIDS TO SAID FLUIDIZED BED, THE IMPROVEMEMT WHICH COMPRISES WITHDRAWING SAID CONTACT SOLIDS FROM THE UPPER PORTION OF SAID FLUID COKING BED WHEREIN THERE IS CONTAINED A HIGH PROPORTION OF FINE PARTICLES AND FRESHLY FORMED AGGLOMERATES, AND SUBJECTING SAID FRESHLY FORMED AGGLOMERATES TO COMMUTION WHEREBY PARTICLE SIZE REDUCTION IS ACCOMPLISHED WITH REDUCED EFFORT.
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) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |