US3247103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of alkyl benzene sulfonates from water
Assignee: Sunoco Inc
•
Filing: 1962-12-03
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Granted: 1966-04-19
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Expires: 1982-12-03
Abstract
No abstract record available.
Inventors
- 👤 Shang Jer-Yu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:43
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
METHOD OF REMOVING SODIUM ALKYL BENZENE SULFONATE DETERGENT FROM WATER WHICH COMPRISES MILDLY AND INTIMATELY CONTACTING WATER CONTAINING SODIUM ALKYL BENZENE SULFONATE DETERGENT WITH A WATER-IMMISCIBLE ORGANIC LIQUID, SETTLING THE RESULTING MIXTURE IN A SEPARATION ZONE TO FORM AN UPPER ORGANIC LIQUID LAYER AND A LOWER WATER LAYER, WHEREBY SODIUM ALKYL BENZENE SULFONATE DETERGENT COLLECTS ADJACENT THE INTERFACE BETWEEN THE LAYERS, AND REMOVING FROM THE SEPARATION ZONE WATER ESSENTIALLY FREE OF SODIUM ALKYL BENZENE SULFONATE DETERGENT.
Claim 2
Dependent Claim
76 words
METHOD OF REMOVING SODIUM ALKYL BENZENE SULFONATE DETERGENT FROM WATER WHICH COMPRISES MILDLY AND INTIMATELY CONTACTING WATER CONTAINING SODIUM ALKYL BENZENE SULFONATE DETERGENT WITH A WATER-IMMISCIBLE ORGANIC LIQUID, SETTLING THE RESULTING MIXTURE IN A SEPARATION ZONE TO FORM AN UPPER ORGANIC LIQUID LAYER AND A LOWER WATER LAYER, WHEREBY SODIUM ALKYL BENZENE SULFONATE DETERGENT COLLECTS ADJACENT THE INTERFACE BETWEEN THE LAYERS, AND REMOVING FROM THE SEPARATION ZONE WATER ESSENTIALLY FREE OF SODIUM ALKYL BENZENE SULFONATE DETERGENT.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |