US3188286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocracking heavy hydrocarbon oil
Assignee: Cities Service Research and Development Co
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Filing: 1961-10-03
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Granted: 1965-06-08
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Expires: 1981-10-03
Abstract
No abstract record available.
Inventors
- 👤 Roger P Van Driesen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:02
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/20; B01J8/22; C; C10; C10G; C10G49/00; C10G49/10; C10G49/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
THE PROCESS FOR HYDROGENATING HYDROCARBON OIL WHICH COMPIRSES FLOWING SAID OIL UPWARDLY THROUGH A LIQUID PHASE REACTION ZONE CONTAINING FINELY DIVIDED HYDROGENATION CATALYST AND ADDED HYDROGEN WHILE MAINTAINING SAID REACTION ZONE UNDER SUITABLE HYDROGENATION CONDITIONS TO THEREY HYDROGENATE AT LEAST A PORTION OF SAID OIL WITH SIMULTANEOUS DEACTIVATION OF CATALYST, CONTINUOUSLY ADDING CATALYST TO SAID REACTION ZONE, SEPARATELY WITHDRAWING LIQUID AND GASEOUS PRODUCT FROM SAID REACTION ZONE THROUGH A VERTICALLY EXTENDING SCREEN POSTIONED IN THE UPPER PORTION OF SAID REACTION ZONE SO AS TO ESTABLISH AN UPPER
Claim 2
Dependent Claim
87 words
THE PROCESS FOR HYDROGENATING HYDROCARBON OIL WHICH COMPIRSES FLOWING SAID OIL UPWARDLY THROUGH A LIQUID PHASE REACTION ZONE CONTAINING FINELY DIVIDED HYDROGENATION CATALYST AND ADDED HYDROGEN WHILE MAINTAINING SAID REACTION ZONE UNDER SUITABLE HYDROGENATION CONDITIONS TO THEREY HYDROGENATE AT LEAST A PORTION OF SAID OIL WITH SIMULTANEOUS DEACTIVATION OF CATALYST, CONTINUOUSLY ADDING CATALYST TO SAID REACTION ZONE, SEPARATELY WITHDRAWING LIQUID AND GASEOUS PRODUCT FROM SAID REACTION ZONE THROUGH A VERTICALLY EXTENDING SCREEN POSTIONED IN THE UPPER PORTION OF SAID REACTION ZONE SO AS TO ESTABLISH AN UPPER
References Cited (Backward Citations)
US2944961A
Cited
US2962434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |