US3072564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrofining process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-12-28
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Granted: 1963-01-08
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Expires: 1979-12-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank Clyde Stewart
- 👤 Dewhirst Harold Dudley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:18
CPC Classifications
C; C10; C10G; C10G65/00; C10G65/02; C10G65/04; C10G65/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
THE METHOD FOR UPGRADING LIGHT DISTILLATE PETROLEUM OILS WHICH COMPRISES TREATING SAID OILS IN ADMIXTURE WITH A HYDROGEN RICH GAS IN A FIRST REACTION ZONE IN CONTACT WITH A HYDROFINING CATALYST AT TEMPERATURES BETWEEN 450 AND 650*F. AND PRESSURES OF BETWEEN 400 AND 1000 P.S.I.G. AT FEED RATES OF 1/2 TO 4 V./V./HR. AND TREATING THE REACTION MIXTURE DISCHARGED FROM THE FIRST REACTION ZONE IN CONTACT WITH A HYDROFINING CATALYST AT TEMPERATURES BETWEEN 150 AND 250*F. AND AT ESSENTIALLY THE SAME PRESSURE AS IN THE FIRST REACTION ZONE.
Claim 2
Independent Claim
88 words
THE METHOD FOR UPGRADING LIGHT DISTILLATE PETROLEUM OILS WHICH COMPRISES TREATING SAID OILS IN ADMIXTURE WITH A HYDROGEN RICH GAS IN A FIRST REACTION ZONE IN CONTACT WITH A HYDROFINING CATALYST AT TEMPERATURES BETWEEN 450 AND 650*F. AND PRESSURES OF BETWEEN 400 AND 1000 P.S.I.G. AT FEED RATES OF 1/2 TO 4 V./V./HR. AND TREATING THE REACTION MIXTURE DISCHARGED FROM THE FIRST REACTION ZONE IN CONTACT WITH A HYDROFINING CATALYST AT TEMPERATURES BETWEEN 150 AND 250*F. AND AT ESSENTIALLY THE SAME PRESSURE AS IN THE FIRST REACTION ZONE.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |