US2640009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of hydrocarbons with hydrogen
Assignee: Gulf Research and Development Co
•
Filing: 1949-12-20
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Granted: 1953-05-26
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Expires: 1969-12-20
Abstract
No abstract record available.
Inventors
- 👤 Charles W Montgomery
- 👤 Charles S Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:29
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; B; B01; B01J; B01J23/00; B01J23/70; B01J23/90; B01J23/94; B01J37/00; B01J37/02; B01J37/0201
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
71 words
THE PROCESS WHICH COMPRISES CONTACTING VAPORS OF A HYDROCARBON OIL AND HYDROGEN WITH A CATALYST COMPOSITION WHICH HAS BEEN TREATED WITH WET STEAM AT A TEMPERATURE OF ABOUT 350* TO 550* F. AND A PRESSURE SUFFICIENT TO MAINTAIN WET STEAM AND BETWEEN ABOUT 135 AND 1000 P.S.I. FOR A PERIOD OF AT LEAST ABOUT 1/2 HOUR, SAID CATALYST COMPOSITION INITIALLY COMPRISING A HYDROGENATING CATALYST COMPOSITED WITH A SOLID REFRACTORY CRACKING CATALYST.
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) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |