US2848522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for recovery of cracking products
Assignee: Phillips Petroleum Co
•
Filing: 1954-01-04
•
Granted: 1958-08-19
•
Expires: 1974-01-04
Abstract
No abstract record available.
Inventors
- 👤 Forrest E Gilmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:13
CPC Classifications
C; C10; C10G; C10G5/00; C10G5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A PROCESS WHICH COMPRISES SUBJECTING A NORMALLY GASEOUS HYDROCARBON TO CRACKING TO OBTAIN A COMPOSITE PRODUCT COMPRISING HYDROGEN AND C1 TO C5 OLEFINS AND PARAFFINS TOGETHER WITH MINOR AMOUNTS OF READILY POLYMERIZABLE AROMATIC AND UNSATURATED IMPURITIES; COOLING SAID COMPOSITE PRODUCT TO A TEMPERATURE SUCH THAT THE CRACKING REACTION CASES; REMOVING OIL-INSOLUBLE IMPURITIES FROM SAID COMPOSITE PRODUCT; SUBJECTING SAID PRODUCT TO REFRIGERATION AT A TEMPERATURE IN THE RANGE 40 TO 70*F. AND
Claim 2
Dependent Claim
71 words
A PROCESS WHICH COMPRISES SUBJECTING A NORMALLY GASEOUS HYDROCARBON TO CRACKING TO OBTAIN A COMPOSITE PRODUCT COMPRISING HYDROGEN AND C1 TO C5 OLEFINS AND PARAFFINS TOGETHER WITH MINOR AMOUNTS OF READILY POLYMERIZABLE AROMATIC AND UNSATURATED IMPURITIES; COOLING SAID COMPOSITE PRODUCT TO A TEMPERATURE SUCH THAT THE CRACKING REACTION CASES; REMOVING OIL-INSOLUBLE IMPURITIES FROM SAID COMPOSITE PRODUCT; SUBJECTING SAID PRODUCT TO REFRIGERATION AT A TEMPERATURE IN THE RANGE 40 TO 70*F. AND
References Cited (Backward Citations)
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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) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |