US3699036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocracking nitrogen containing feedstocks
Assignee: Union Oil Company of California
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Filing: 1970-08-21
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Granted: 1972-10-17
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Expires: 1990-08-21
Abstract
Abstract HYFROCARBONS CONTAINING SUBSTANTIAL AMOUNTS OF ORGANO-NITROGEN COMPOUNDS ARE CONVERTED IN THE PRESENCE OF HYDROGEN OVER A CATALYST COMPRISING ALUMINA, ALUMINOSILICATES, OR COMBINATIONS THEREOF WITH SILICA, ZIRONIA, MAGNESIS AND THE LIKE WITH OR WITHOUT ACTIVE METAL COMPONENTS IN THE PRESENCE OF CONTROLLED MINOR AMOUNTS OF ADDED WATER.
Inventors
- 👤 Robert H Hass
- 👤 Cloyd P Reeg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:16
CPC Classifications
C; C10; C10G; C10G47/00
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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |