US2669591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for conversion of hydrocarbons with combustion gas and finely divided catalyst
Assignee: Phillips Petroleum Co
•
Filing: 1948-12-31
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Granted: 1954-02-16
•
Expires: 1968-12-31
Abstract
No abstract record available.
Inventors
- 👤 Harold J Hepp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:07
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; C; C07; C07C; C07C5/00; C07C5/32; C07C5/321
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
IN THE ART OF CATALYTICALLY CONVERTING HYDROCARBONS, THE STEPS WHICH COMPRISES PASSING A STREAM OF HYDROCARBON FEED CONTAINING FINELY DIVIDED HARD, SOLID CONVERSION CATALYST IN AN AXIAL DIRECTION AT CONVERSION CONDITIONS, CONCOMITANTLY INTRODUCING INTO CONTACT WITH SAID STREAM AT THE PERIPHERY THEREOF AND IN A DIRECTION TANGENT TO SAID PERIPHERY A STREAM OF HOT COMBUSTION GASES AND MAINTAINING SAME AS A BLANKET SPIRALLY SWIRL-
Claim 2
Dependent Claim
64 words
IN THE ART OF CATALYTICALLY CONVERTING HYDROCARBONS, THE STEPS WHICH COMPRISES PASSING A STREAM OF HYDROCARBON FEED CONTAINING FINELY DIVIDED HARD, SOLID CONVERSION CATALYST IN AN AXIAL DIRECTION AT CONVERSION CONDITIONS, CONCOMITANTLY INTRODUCING INTO CONTACT WITH SAID STREAM AT THE PERIPHERY THEREOF AND IN A DIRECTION TANGENT TO SAID PERIPHERY A STREAM OF HOT COMBUSTION GASES AND MAINTAINING SAME AS A BLANKET SPIRALLY SWIRL-
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) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |