US2900326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic cracking process
Assignee: Phillips Petroleum Co
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Filing: 1957-03-29
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Granted: 1959-08-18
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Expires: 1977-03-29
Abstract
No abstract record available.
Inventors
- 👤 Forrest E Gilmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:17
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A PROCESS WHICH COMPRISES CATALYTICALLY CRACKING A HYDROCARBON IN A CRACKING ZONE IN THE PRESENCE OF A MOVING MASS OF CATALYST; SEPARATING FROM THE REACTION PRODUCTS A LOW BOILING GASEOUS FRACTION CONTAINING HYDROGEN AND C1 TO C5 HYDROCARBONS; SPLITTINTG SAID FRACTION INTO TWO GASEOUS STREAMS; RAISING THE PRESSURE OF ONE OF SAID GASEOUS STREAMS AND RETURNING AT LEAST A PORTION OF THE LATTER STREAM TO SAID CRACKING ONE; RAISING THE PRESSURE OF THE OTHER OF SAID STREAMS TO A HIGHER
Claim 2
Dependent Claim
80 words
A PROCESS WHICH COMPRISES CATALYTICALLY CRACKING A HYDROCARBON IN A CRACKING ZONE IN THE PRESENCE OF A MOVING MASS OF CATALYST; SEPARATING FROM THE REACTION PRODUCTS A LOW BOILING GASEOUS FRACTION CONTAINING HYDROGEN AND C1 TO C5 HYDROCARBONS; SPLITTINTG SAID FRACTION INTO TWO GASEOUS STREAMS; RAISING THE PRESSURE OF ONE OF SAID GASEOUS STREAMS AND RETURNING AT LEAST A PORTION OF THE LATTER STREAM TO SAID CRACKING ONE; RAISING THE PRESSURE OF THE OTHER OF SAID STREAMS TO A HIGHER
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |