Patent US3663421A successfully refreshed from Google Patents.
US3663421A
Expired / Lapsed
US
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Continuous,fluidized process and system for thermal recovery of hydrocarbonaceous materials from solids
Assignee: Sunoco Inc
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Filing: 1970-11-04
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Granted: 1972-05-16
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Expires: 1990-11-04
Abstract
Abstract THE INVENTION RELATES TO A NEW PROCESS AND APPARATUS FOR THE THERMAL RECOVERY OF VALUABLE LIQUID AND GASEOUS HYDROCARBON PRODUCTS FROM HYDROCARBONACEOUS MATERIALS. THE PROCESS IS CONDUCTD WITHIN A VESSEL WHICH HAS CONTIGUOUS THERMAL TREATMENT ZONES AND SPENT SOLIDS COMBUSTION ZONES SEPARATED BY A GAS SEAL; THE THERMAL TREATMENT ZONE IS CHARACTERIZED BY MAINTAINING A FLUDIDIZED BED OF THE HYDROCARBONACEOUS MATERIAL ON SHALLOW-BED CONCATENATED, SLANTING TRAYS: A PLURALITY OF SIDESTREAM OUTLETS TO REMOVE CONDESABLE HYDROCARBON PRODUCTS AND A PLU- RALITY OF HOT GAS INLETS WHICH SERVES TO MAINTAIN FLUIDIZATION AND GIVES TEMPERATURE CONTROL.
Inventors
- 👤 George E Parr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:13
CPC Classifications
C; C10; C10B; C10B49/00; C10B49/02; C10B49/04; C10B49/08; C10B49/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |