US2773003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waste water treatment
Assignee: Universal Oil Products Co
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Filing: 1953-04-16
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Granted: 1956-12-04
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Expires: 1973-04-16
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Brown
- 👤 James E Gantt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:56
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE METHOD OF TREATING WASTE WATER FROM PETROLEUM REFINING PROCESSES TO REMOVE VOLATILE CONTAMINANTS AND PHENOLS THEREFROM WHICH COMPRISES PASSING SAID WASTE WATER INTO COUNTERCURRENT CONTACT WITH A STREAM OF STRIPPING GAS, SEPARATELY RECOVERING THE RESULTANT VOLATILE CONTAMINANT-CONTAINING STRIPPING GAS STREAM AND A TREATED WATER STREAM CONTAINING PHENOLS, AND PASSING AT LEAST A PORTION OF SAID TREATED WATER STREAM INTO CONTACT WITH VOLATILE CONTAMINANT-CONTAINING HYDROCARBONS TO REMOVE VOLATILE CONTAMINANTS FROM THE HYDROCARBONS AND TO EFFECT A TRANSFER OF PHENOLS FROM THE WATER STREAM TO THE HYDROCARBONS.
Claim 2
Independent Claim
86 words
THE METHOD OF TREATING WASTE WATER FROM PETROLEUM REFINING PROCESSES TO REMOVE VOLATILE CONTAMINANTS AND PHENOLS THEREFROM WHICH COMPRISES PASSING SAID WASTE WATER INTO COUNTERCURRENT CONTACT WITH A STREAM OF STRIPPING GAS, SEPARATELY RECOVERING THE RESULTANT VOLATILE CONTAMINANT-CONTAINING STRIPPING GAS STREAM AND A TREATED WATER STREAM CONTAINING PHENOLS, AND PASSING AT LEAST A PORTION OF SAID TREATED WATER STREAM INTO CONTACT WITH VOLATILE CONTAMINANT-CONTAINING HYDROCARBONS TO REMOVE VOLATILE CONTAMINANTS FROM THE HYDROCARBONS AND TO EFFECT A TRANSFER OF PHENOLS FROM THE WATER STREAM TO THE HYDROCARBONS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |