US2927077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refining of mineral oil
Assignee: Sunoco Inc
•
Filing: 1957-06-21
•
Granted: 1960-03-01
•
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 21:15
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.
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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 |