Patent US2812305A successfully refreshed from Google Patents.
US2812305A
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Phenol removal from phenol-bearing waters
Assignee: Jones and Laughlin Steel Corp
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Filing: 1954-08-25
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Granted: 1957-11-05
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Expires: 1974-08-25
Abstract
No abstract record available.
Inventors
- 👤 Dan P Manka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:07
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/26; C02F2101/00; C02F2101/30; C02F2101/36; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/908; Y10S210/909
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
THE PROCESS OF REMOVING PHENOLS FROM PHENOL-BEARING WATERS COMPRISING TREATING SAID WATERS WITH A MIXTURE OF AN AROMATIC HYDROCARBON SOLVENT FOR PHENOLS AND 2-METHYL-5-ETHYLPYRIDINE, WHEREBY PHENOLS ARE DISSOLVED IN SAID SOLVENT, AND SEPARATING SAID MIXTURE FROM THE WATERS.
Claim 2
Dependent Claim
38 words
THE PROCESS OF REMOVING PHENOLS FROM PHENOL-BEARING WATERS COMPRISING TREATING SAID WATERS WITH A MIXTURE OF AN AROMATIC HYDROCARBON SOLVENT FOR PHENOLS AND 2-METHYL-5-ETHYLPYRIDINE, WHEREBY PHENOLS ARE DISSOLVED IN SAID SOLVENT, AND SEPARATING SAID MIXTURE FROM THE WATERS.
References Cited (Backward Citations)
US1795382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |