US3707448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for extracting metal from a metal source in an electrolytic cell
Assignee: INTERN ERFINER und PATENTANSTA
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Filing: 1970-10-20
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Granted: 1972-12-26
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Expires: 1990-10-20
Abstract
Abstract A METHOD OF EXTRACTING METAL FROM A METAL SOURCE, SUCH AS PLATING, SCRAPS OR ORES OF TIN, ALUMINUM, ZINC, LEAD, VANADIUM, CHROMIUM, MANGANESE, MOLYBDENUM, NICKEL AND SILVER, BY CHARGING THE METAL SOURCE INTO AN ELECTROLYTIC CELL HAVING AN AQUEOUS ELECTROLYTE CONTAINING SODIUM CHLORIDE AND SODIUM CARBONATE, IN CONNECTION WITH THE ANODE OFTHE CELL, AND EXTRACTING THE METAL FROM THE METAL SOURCE BY AN ELECTROLYTIC REACTION TO FORM A METAL SALT.
Inventors
- 👤 Alberto E Veloso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:46
CPC Classifications
C; C01; C01G; C01G37/00; C01G37/14; C01F; C01F7/00; C01F7/02; C01F7/04; C01G19/00
Claims Analysis
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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) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |