US3825488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for hydrorefining a hydrocarbon charge stock
Assignee: Universal Oil Products Co
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Filing: 1973-05-07
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Granted: 1974-07-23
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Expires: 1993-05-07
Abstract
Abstract THIS INVENTION RELATES TO A PROCESS FOR THE HYDROREFINING OF PETROLEUM CRUDE OILS, HEAVY VACUUM GAS OILS, HEAVY CYCLE STOCKS, CRUDE OIL RESIDUUM, TOPPED CRUDE OIL, TAR SAND OIL, SHALE OIL, LIQUIFIED COAL, ETC. MORE SPECIFICALLY THE PRESENT INVENTION INVOLVES A PROCESS FOR HYDROREFINING HEAVY HYDROCARBON CHARGE STOCKS TO EFFECT THE REMOVAL OF NITROGEN AND SULFUR THEREFROM, AND IS ADVANTAGEOUS WHEN EMPLOYED FOR THE DESTRUCTIVE REMOVAL OF ORGANOMETALLIC CONTMINANTS AND PARTICULARLY THE CONVERSION OF PENTANE-INSOLUBLE HYDROCARBONACEOUS MATERIAL.
Inventors
- 👤 J Gatsis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:18
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/14; C10G45/16; B; B01; B01J; B01J27/00; B01J27/14; B01J27/186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |