US2926131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic cracking process
Assignee: Phillips Petroleum Co
•
Filing: 1956-01-16
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Granted: 1960-02-23
•
Expires: 1976-01-16
Abstract
No abstract record available.
Inventors
- 👤 Harold J Hepp
- 👤 Lewis E Drehman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:33
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
IN A CATALYTIC CRACKING PROCESS, THE STEPS WHICH COMPRISE FEEDING A GAS OIL TO A CATALYTIC CRACKING ZONE CONTAINING A CLAY CRACKING CATALYST, ADMIXING A SUFFICIENT AMOUNT OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND HYDROGEN CHLORIDE WITH THE FEED TO SAID CRACKING ZONE TO INCREASE THE AROMATIC CONTENT OF THE RESULTING GASOLINE, FRACTIONATING THE EFFLUENT CONTENT THE CRACKING ZONE TO PRODUCE A GASOLINE FRACTION, PASSING A BEAM OF ULTRAVIOLET RADIATION THROUGH A PORTION OF SAID GASOLINE FRACTION TO PRODUCE AN OUTPUT REPRESENTATIVE OF THE AROMATIC CONTENT OF THE GASOLINE FRACTION, AND CONTROLLING THE AMOUNT OF SAID MATERIAL ADMIXED, WITH THE FEED IN ACCORDANCE WITH SAID OUTPUT TO MAINTAIN THE AROMATIC CONTENT OF THE GASOLINE FRACTION AT A PRESELECTED VALUE.
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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) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |