Patent US3703453A successfully refreshed from Google Patents.
US3703453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic destruction of sewage
Assignee: CHEMCORP INDUSTRIES Ltd
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Filing: 1970-09-01
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Granted: 1972-11-21
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Expires: 1990-09-01
Abstract
Abstract A METHOD FOR THE ELECTROLYTIC DESTRUCTION OF WASTE MATERIAL SUCH AS SEWAGE, ORGANIC PROCESS WASTE MATERIALS, AND THE LIKE; INVOLVING OXIDATION BY ELECTROLYSIS IN THE ANODE COMPARTMENT OF AN ELECTROLYTIC CELL, IN THE PRESENCE OF HYDROCHLORIC ACID AND CUPROUS CHLORIDE. THIS RESULTS IN THE FORMATION OF OXIDATION PRODUCTS. THE RESULTING LIQUID MAY BE REDUCED BY ELECTROLYSIS IN THE CATHODE COMPARTMENT OF THE ELECTROLYTIC CELL, AND THIS WILL PERMIT RECOVERY OF THE COPPER CATALYST.
Inventors
- 👤 John Gordy
- 👤 Douglas R Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:48
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/467; C02F1/4676; C02F1/4678; C02F1/4672; C02F2305/00; C02F2305/02; C02F2305/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |