Patent US3702237A successfully refreshed from Google Patents.
US3702237A
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Hydrocarbon conversion apparatus
Assignee: Universal Oil Products Co
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Filing: 1970-07-02
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Granted: 1972-11-07
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Expires: 1990-07-02
Abstract
Abstract A HYDROCARBON CONVERSION APPARATUS OR VESSEL FOR USE IN MIXED-PHASE, FIXED-BED CATALYTIC SYSTEMS. THE VESSEL IS EQUIPPED WITH AN INTERNAL VAPOR-LIQUID SEPARATION COMPARTMENT FROM WHICH A PRINCIPALLY VAPOROUS PHASE IS REMOVED. REMOVAL OF THIS VAPOROUS PHASE SIGNIFICANTLY INHIBITS FOAMING IN THE OUTLET LINE THROUGH WHICH THE PRODUCT EFFLUENT IS WITHDRAWN.
Inventors
- 👤 Charles H Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:26
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; C; C10; C10G; C10G49/00; C10G49/002; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00079; B01J2208/00106; B01J2208/00265; B01J2208/00283; B01J2208/00548; B01J2208/0061
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) | 1975-11-07 | 1976-05-08 | 1976-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-07 | 1980-05-08 | 1980-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-07 | 1984-05-08 | 1984-11-07 | $7700.00 | Window Closed / Lapsed |