Patent US2495648A successfully refreshed from Google Patents.
US2495648A
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Hydrocarbon treating process
Assignee: Shell Development Co
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Filing: 1946-08-24
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Granted: 1950-01-24
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Expires: 1966-08-24
Abstract
No abstract record available.
Inventors
- 👤 Hervey H Voge
- 👤 George M Good
- 👤 Bernard S Greensfelder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:43
CPC Classifications
C; C07; C07C; C07C11/00; Y; Y10; Y10S; Y10S585/00; Y10S585/949; Y10S585/954
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
71 words
THE PROCESS WHICH COMPRISES CONTACTING A MIXTURE OF A STRAIGHT CHAIN OLEFIN AND AN ISOMERIC BRANCHED CHAIN OLEFIN HAVING FROM 4 TO 6 CARBON ATOMS WITH A CRACKING CATALYST OF THE GROUP CONSISTING OF SILICA-ALUMINA, SILICA-MAGNESIA, SILICA-ZIRCONIA-ALUMINA AND ALUMINA-BORIA CRACKING CATALYSTS AND THE ACTIVATED CLAY CRACKING CATALYSTS AT A TEMPERATURE BETWEEN 300*C. AND 450*C. AND AT A PRESSURE BETWEEN 1 AND 10 ATMOSPHERES, SAID CONDITIONS BEING CORRELATED IN THE KNOWN MANNER
References Cited (Backward Citations)
FR846480A
Cited
US2241393A
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US2328755A
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US2328754A
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US2328756A
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US2287935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |