Patent US2729593A successfully refreshed from Google Patents.
US2729593A
Expired / Lapsed
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Demetalation of hydrocarbon oils
Assignee: ExxonMobil Oil Corp
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Filing: 1953-01-06
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Granted: 1956-01-03
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Expires: 1973-01-06
Abstract
No abstract record available.
Inventors
- 👤 William E Garwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:06
CPC Classifications
C; C10; C10G; C10G17/00; C10G17/02; C10G17/04; C10G17/07; C10G11/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
41 words
A PROCESS FOR REMOVING METAL CONTAMINANT SELECTED FROM THE GROUP CONSISTING OF NICKEL, VANADIUM, IRON, AND COPPER FROM A HYDROCARBON OIL CONTAINING THE SAME, WHICH COMPRISES CONTACTING SAID OIL WITH A REAGENT SELECTED FROM THE GROUP CONSISTING OF IODINE, HYDRIODIC ACID
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) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |