Patent US2703312A successfully refreshed from Google Patents.
US2703312A
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Process for treating liquid effluents containing phenolic type substances
Assignee: Welsbach Corp
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Filing: 1951-03-23
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Granted: 1955-03-01
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Expires: 1971-03-23
Abstract
No abstract record available.
Inventors
- 👤 Hann Victor Adams
- 👤 Niegowski Sigismund Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:16
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/78; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/908; Y10S210/909
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
38 words
IN A PROCESS INVOLVING THE OZONE-OXIDATION OF PHENOLS CONTAINED IN A WASTE EFFLUENT, THE STEPS WHICH COMPRISE ADJUSTING THE PH TO GREATER THAN ABOUT 11.5 AND CARRYING OUT SAID OZONE-OXIDATION IN AN EFFLUENT MAINTAINED AT SAID ADJUSTED PH.
References Cited (Backward Citations)
US1341913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-28 | 1958-08-30 | 1959-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-28 | 1962-08-30 | 1963-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-28 | 1966-08-30 | 1967-03-01 | $7700.00 | Window Closed / Lapsed |