Patent US2927077A successfully refreshed from Google Patents.
US2927077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refining of mineral oil
Assignee: Sunoco Inc
•
Filing: 1957-06-21
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Granted: 1960-03-01
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Expires: 1977-06-21
Abstract
No abstract record available.
Inventors
- 👤 James L Jezl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:09
CPC Classifications
C; C10; C10G; C10G29/00; C10G29/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
METHOD FOR REFINING PETROLEUM FRACTIONS WHICH COMPRISES: TREATING A STRAIGHT RUN PETROLEUM FRACTION WITH TREATING MATERIAL CONSISTING ESSENTIALLY OF 0.1 TO 10 WEIGHT PERCENT BASED ON THE PETROLEUM FRACTION OF AN ADDED ORGANIC CARBOXYLIC ACID AND 0.05 TO 5 WEIGHT PERCENT BASED ON THE PETROLEUM FRACTION OF AN ADDED ORGANIC ACYLATION CATALYST AT A TEMPERATURE WITHIN THE APPROXIMATE RANGE FROM 200 TO 500*F.
Claim 2
Dependent Claim
63 words
METHOD FOR REFINING PETROLEUM FRACTIONS WHICH COMPRISES: TREATING A STRAIGHT RUN PETROLEUM FRACTION WITH TREATING MATERIAL CONSISTING ESSENTIALLY OF 0.1 TO 10 WEIGHT PERCENT BASED ON THE PETROLEUM FRACTION OF AN ADDED ORGANIC CARBOXYLIC ACID AND 0.05 TO 5 WEIGHT PERCENT BASED ON THE PETROLEUM FRACTION OF AN ADDED ORGANIC ACYLATION CATALYST AT A TEMPERATURE WITHIN THE APPROXIMATE RANGE FROM 200 TO 500*F.
References Cited (Backward Citations)
US2072053A
Cited
US2228791A
Cited
GB190712606A
Cited
DE352917C
Cited
DE403134C
Cited
US1802336A
Cited
US2018715A
Cited
US2110311A
Cited
US2301528A
Cited
US2263176A
Cited
US2232435A
Cited
US2380561A
Cited
US2477190A
Cited
US2494133A
Cited
US2656380A
Cited
US2608520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |