Patent US2966455A successfully refreshed from Google Patents.
US2966455A
Expired / Lapsed
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Refining hydrocarbons with hydrazines and hydrogenation catalysts
Assignee: Sunoco Inc
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Filing: 1957-08-14
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Granted: 1960-12-27
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Expires: 1977-08-14
Abstract
No abstract record available.
Inventors
- 👤 Archibald P Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:45
CPC Classifications
C; C10; C10G; C10G29/00; C10G29/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
PROCESS FOR REFINING HYDROCARBONS WHICH COMPRISES CONTACTING A HYDROCARBON MIXTURE CONTAINING UNSTABLE CONSTITUENTS INCLUDING NITROGEN COMPOUNDS CAUSING UNSATISFACTORY COLOR STABILITY WITH A TREATING AGENT HAVING THE FORMULA:
Claim 2
Dependent Claim
27 words
PROCESS FOR REFINING HYDROCARBONS WHICH COMPRISES CONTACTING A HYDROCARBON MIXTURE CONTAINING UNSTABLE CONSTITUENTS INCLUDING NITROGEN COMPOUNDS CAUSING UNSATISFACTORY COLOR STABILITY WITH A TREATING AGENT HAVING THE FORMULA:
References Cited (Backward Citations)
US2867577A
Cited
US2767119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |