Patent US2230304A successfully refreshed from Google Patents.
Patent US2748064A successfully refreshed from Google Patents.
US2748064A
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Method of decolorizing oil
Assignee: ExxonMobil Oil Corp
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Filing: 1952-06-06
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Granted: 1956-05-29
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Expires: 1972-06-06
Abstract
No abstract record available.
Inventors
- 👤 Harold C Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:12
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/06; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
THAT METHOD FOR THE DECOLORIZATION OF OILS WHICH COMPRISES: ADMIXING A FINELY PULVERULENT SOLID ADSORBENT HAVING A GRAIN SIZE WHICH WILL PASS THROUGH A 100 MESH TYLER SCREEN ORIGINALLY PRODUCED BY THE CO-GELATION OF SILICA AND ALUMINA WITH A LIQUID MIXTURE OF OIL AND A SOLVENT CAPABLE OF REMOVING ADSORBED COLOR BODIES FROM THE ADSORBENT WHEN SAID ADSORBENT IS SPENT, PASSING THE MIXTURE OF OIL, SOLID AND SOLVENT INTO A STRIPPING TOWER WHEREIN SOLVENT IS REMOVED AS VAPOR WHILE THE ADSORBENT REMOVES COLOR BODIES FROM THE OIL, REMOVING THE OIL TOGETHER WITH CONTAMINATED ADSORBENT FROM THE SAID STRIPPER, TREATING THE MIXTURE OF OIL AND CONTAMINATED ADSORBENT
Claim 2
Dependent Claim
106 words
THAT METHOD FOR THE DECOLORIZATION OF OILS WHICH COMPRISES: ADMIXING A FINELY PULVERULENT SOLID ADSORBENT HAVING A GRAIN SIZE WHICH WILL PASS THROUGH A 100 MESH TYLER SCREEN ORIGINALLY PRODUCED BY THE CO-GELATION OF SILICA AND ALUMINA WITH A LIQUID MIXTURE OF OIL AND A SOLVENT CAPABLE OF REMOVING ADSORBED COLOR BODIES FROM THE ADSORBENT WHEN SAID ADSORBENT IS SPENT, PASSING THE MIXTURE OF OIL, SOLID AND SOLVENT INTO A STRIPPING TOWER WHEREIN SOLVENT IS REMOVED AS VAPOR WHILE THE ADSORBENT REMOVES COLOR BODIES FROM THE OIL, REMOVING THE OIL TOGETHER WITH CONTAMINATED ADSORBENT FROM THE SAID STRIPPER, TREATING THE MIXTURE OF OIL AND CONTAMINATED ADSORBENT
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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) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |