US2635989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic process and apparatus
Assignee: Gulf Oil Corp
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Filing: 1950-08-31
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Granted: 1953-04-21
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Expires: 1970-08-31
Abstract
No abstract record available.
Inventors
- 👤 Zora D Bonner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:50
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2803; F01N3/2832; B; B01; B01J; B01J8/00; B01J8/02; B01J8/0207; B01J8/0278; A; A01; A01D; A01D2101/00; F01N2240/00; F01N2240/20; F01N2330/00; F01N2330/08; F01N2470/00; F01N2470/02; F01N2570/00; F01N2570/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
85 words
A PROCESS OF HYDROCRACKING A HYDROCARBON BY CONTACTING LIQUID-VAPOR MIXTURE OF A HYDROCARBON WITH HYDROGEN AND A CATALYST, WHICH PROCESS COMPRISES PASSING A STREAM OF MIXED HYDROCARBON LIQUID AND VAPOR TOGETHER WITH HYDROGEN THROUGH AN ELONGATED DISTRIBUTING ZONE LOCATED IN THE CENTRAL PORTION OF THE CATALYST BED, IMPINGING THE STREAM OF LIQUID-VAPOR MIXTURE AS IT FLOWS ALONG THE DISTRIBUTING ZONE AGAINST STATIONARY SURFACES, WHICH SURFACES ARE SET AT AN ANGLE TO THE DIRECTION OF FLOW OF THE LIQUID-VAPOR MIXTURE WHEREBY ROTARY MOTION IS IMPARTED TO
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-20 | 1956-10-20 | 1957-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-20 | 1960-10-20 | 1961-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-20 | 1964-10-20 | 1965-04-21 | $7700.00 | Window Closed / Lapsed |