US3271302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple-stage hydrorefining of petroleum crude oil
Assignee: Universal Oil Products Co
•
Filing: 1964-06-17
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Granted: 1966-09-06
•
Expires: 1984-06-17
Abstract
No abstract record available.
Inventors
- 👤 William K T Gleim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:39
CPC Classifications
C; C10; C10G; C10G65/00; C10G65/02; C10G65/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A PROCESS FOR HYDROREFINING A HYDROCARBON CHARGE STOCK WHICH COMPRISES THE STEPS OF: (A) TREATING SAID CHARGE STOCK, IN THE ABSENCE OF A CATALYTIC COMPOSITE, WITH A GASEOUS MIXTURE OF HYDROGEN AND HYDROGEN SULFIDE; AND (B) REACTING AT LEAST A PORTION OF THE RESULTING TREATED PRODUCT EFFLUENT WITH HYDROGEN, IN A REACTION ZONE CONTAINING A HYDROREFINING CATALYTIC COMPOSITE.
Claim 2
Dependent Claim
58 words
A PROCESS FOR HYDROREFINING A HYDROCARBON CHARGE STOCK WHICH COMPRISES THE STEPS OF: (A) TREATING SAID CHARGE STOCK, IN THE ABSENCE OF A CATALYTIC COMPOSITE, WITH A GASEOUS MIXTURE OF HYDROGEN AND HYDROGEN SULFIDE; AND (B) REACTING AT LEAST A PORTION OF THE RESULTING TREATED PRODUCT EFFLUENT WITH HYDROGEN, IN A REACTION ZONE CONTAINING A HYDROREFINING CATALYTIC COMPOSITE.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |