US3565968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cracking and recovery of hydrocarbons
Assignee: Ashland LLC
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Filing: 1967-07-31
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Granted: 1971-02-23
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Expires: 1987-07-31
Abstract
Abstract THIS APPLICATION DISCLOSES METHODS AND APPARATUS FOR CRACKING HYDROCARBON FEEDSTOCKS, IN WHICH A SOLID CARBONACEOUS FUEL IS BURNED WITHIN A CRACKING ZONE TO SUPPLY THE TEMPERATURE AND THE HEAT REQUIRED FOR THE ENDOTHERMIC CRACKING REACTION. A REACTOR IS ALSO DISCLOSED WHICH HAS IN IT AN EDUCTOR TUBE THAT IS OF REDUCED CROSS-SECTIONAL AREA WITH RESPECT TO THE CRACKING CHAMBER FOR PREFERENTIALLY RECOVERING FROM THE INTERIOR OF THE REACTOR A STREAM RICH IN CRACKED PRODUCTS AND LEAN IN COMBUSTION PRODUCTS AND ASH.
Inventors
- 👤 Harold N Hicks Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:42
CPC Classifications
C; C07; C07C; C07C4/00; C07C4/02; C10; C10G; C10G2400/00; C10G2400/20
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |