Patent US3730864A successfully refreshed from Google Patents.
US3730864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decreasing the phenolic content of liquids by an electrochemical technique
Assignee: Hooker Chemical Corp
•
Filing: 1971-04-14
•
Granted: 1973-05-01
•
Expires: 1991-04-14
Abstract
Abstract A METHOD FOR DECREASING THE PHENOLIC CONTENT OF A SOLUTION WHICH COMPRISES PASSING AN ELECTRIC CURRENT THROUGH A SOLUTION CONTAINING PHENOLIC MATERIAL, WHICH SOLUTION IS CONTAINED AS THE ELECTROLYTE IN A CELL, SAID CELL HAVING AT LEAST ONE POSITIVE AND ONE NEGATIVE ELECTRODE, BETWEEN WHICH THE CURRENT IS PASSED, AND WHEREIN THE ELECTROLYTE ALSO CONTAINS A BED OF PARTICLES, DISTRIBUTED THEREIN, SUCH THAT THE POROSITY OF THE BED IS FROM ABOUT 40 TO 80%, POROSITY BEING DEFINED AS THE ELECTROLYSIS OF THE ELECTROLYTE IS CONTINUED UNTIL THE DESIRED REDUCTION IN THE PHENOLIC CONTENT THEREOF IS OBTAINED.
Inventors
- 👤 M Tarjanyi
- 👤 M Strier
- 👤 H Siegerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:54
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/467; C02F1/4672; C02F1/46104; C02F1/46109; C02F1/46114
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |