Patent US1566058A successfully refreshed from Google Patents.
Patent US2626208A successfully refreshed from Google Patents.
US2626208A
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Preparation of stable distillate fuels from cracked stocks
Assignee: Standard Oil Co
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Filing: 1949-12-19
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Granted: 1953-01-20
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Expires: 1969-12-19
Abstract
No abstract record available.
Inventors
- 👤 Russell H Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:56
CPC Classifications
C; C10; C10G; C10G19/00; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/228; C10L1/2283; C10L1/26; C10L1/2691
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
THE METHOD OF TREATING CRACKED HYDROCARBON OIL BOILING IN THE RANGE OF ABOUT 400* F. TO 750* F. WHICH COMPRISES WASHING IT WITH AN AQUEOUS SOLUTION OF AN ALKALI METAL HYDROXIDE, SUBSEQUENTLY REMOVING SAID SOLUTION FROM IT AND SUBSEQUENTLY ADDING TO IT ABOUT 0.01 TO 0.001 WEIGHT PER CENT OF A NEUTRALIZED POLYBUTENE PHOSPHORUS SULFIDE REACTION PRODUCT AND ABOUT 0.01 TO 0.001 WEIGHT PER CENT OF N,N''-DISALICYLIDENE-1,2-DIAMINOPROPANE.
Claim 2
Independent Claim
67 words
THE METHOD OF TREATING CRACKED HYDROCARBON OIL BOILING IN THE RANGE OF ABOUT 400* F. TO 750* F. WHICH COMPRISES WASHING IT WITH AN AQUEOUS SOLUTION OF AN ALKALI METAL HYDROXIDE, SUBSEQUENTLY REMOVING SAID SOLUTION FROM IT AND SUBSEQUENTLY ADDING TO IT ABOUT 0.01 TO 0.001 WEIGHT PER CENT OF A NEUTRALIZED POLYBUTENE PHOSPHORUS SULFIDE REACTION PRODUCT AND ABOUT 0.01 TO 0.001 WEIGHT PER CENT OF N,N''-DISALICYLIDENE-1,2-DIAMINOPROPANE.
References Cited (Backward Citations)
US2150084A
Cited
US2181122A
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US2282513A
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US2267109A
Cited
US2316080A
Cited
US2316087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-20 | 1956-07-21 | 1957-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-20 | 1960-07-21 | 1961-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-20 | 1964-07-21 | 1965-01-20 | $7700.00 | Window Closed / Lapsed |