US3200069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for removing branched chain alkylarylsulfonates from water
Assignee: EIDP Inc
•
Filing: 1963-03-29
•
Granted: 1965-08-10
•
Expires: 1983-03-29
Abstract
No abstract record available.
Inventors
- 👤 Hugh R Eisenhauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:41
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/722; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/906; Y10S210/908; Y10S210/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
THE METHOD OF REMOVING A BRANCHED CHAIN ALKYLBENZENSULFONATE CONTAIMINANT FROM WATER COMPRISING TREATING WATER CONTAMINATED WITH A BRANCH CHAIN ALKYLBENZENESULFONATE WITH 1 TO 25 MOLES OF HYDROGEN PEROXIDE PER MOLE OF SAID CONTAMINANT OF A PH OF 3 TO 6 AND IN THE PRESENCE OF 4 TO 20 MOLES OF FERROUS ION PER MOLE OF SAID CONTAMINANT.
Claim 2
Independent Claim
57 words
THE METHOD OF REMOVING A BRANCHED CHAIN ALKYLBENZENSULFONATE CONTAIMINANT FROM WATER COMPRISING TREATING WATER CONTAMINATED WITH A BRANCH CHAIN ALKYLBENZENESULFONATE WITH 1 TO 25 MOLES OF HYDROGEN PEROXIDE PER MOLE OF SAID CONTAMINANT OF A PH OF 3 TO 6 AND IN THE PRESENCE OF 4 TO 20 MOLES OF FERROUS ION PER MOLE OF SAID CONTAMINANT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |