US3785958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desulfurization and conversion of black oils
Assignee: Universal Oil Products Co
•
Filing: 1972-09-08
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Granted: 1974-01-15
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Expires: 1992-09-08
Abstract
Abstract ASPHALTENE- AND ASH-CONTAINING HYDROCARBONACEOUS CHARGE STOCKS ARE CONVERTED INTO LOWER-BOILING, SUBSTANTIALLY DESULFURIZED HYDROCARBON PRODUCTS VIA A COMBINATION PROCESS INVOLVING DEASHING, HYDROGENATIVE CONVERSION OF ASPHALTENES IN A SLURRY-TYPE SYSTEM AND DESULFURIZATION EMPLOYING A FIXED-BED CATALYTIC COMPOSITE. THE PROCESS AFFORDS MAXIMUM YIELD OF NORMALLY LIQUID HYDROCARBON PRODUCTS, COUPLED WITH SUBSTANTIAL DESULFURIZATION THEREOF.
Inventors
- 👤 W Gleim
- 👤 J Gatsis
- 👤 Hara M O
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:32
CPC Classifications
C; C10; C10G; C10G67/00; C10G67/02; C10G67/04; C10G67/0454; C10G67/0463
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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |