Patent US2752233A successfully refreshed from Google Patents.
US2752233A
Expired / Lapsed
US
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Method for extracting simple elements from fusible materials containing them
Assignee: Compagnie de Saint Gobain SA
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Filing: 1954-07-14
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Granted: 1956-06-26
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Expires: 1974-07-14
Abstract
No abstract record available.
Inventors
- 👤 Peyches Ivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:06
CPC Classifications
C; C22; C22B; C22B5/00; C22B5/02; C22B5/16; C22B4/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
THE METHOD OF EXTRACTING PURE ELEMENTS OF THE METAL AND MATALLOID CLASS AND OF THE TYPE OF ARSENIC, ANTIMONY, BERYLLIUM, CADMIUM AND MAGNESIUM FROM POOR GANGUES COMPRISING MOLTEN METAL SILICATES THAT COMPRISES FUSING AND REDUCING THE SILICATES AND VAPORIZING THE RELEASED METAL IN A CLOSED FURNACE BY MEANS OF ELECTRODES WHICH PASS HEATING CURRENT THROUGH THE MOLTEN SILICATES, SAID ELECTRODES BEING POROUS, HOLLOW REDUCING AGENTS, HAVING PORES ON THE ORDER OF 5-50 MICRONS, AND ESTABLISING A DIFFERENTIAL PRESSURE BETWEEN THE INSIDE AND OUTSIDE OF THE ELECTRODES TENDING TO DRAW THE REDUCED METAL INTO THE HOLLOWS OF THE ELECTRODES, AND CONDENSING THE REDUCED METAL AFTER IT IS DRAWN FROM THE BATH.
Claim 2
Independent Claim
110 words
THE METHOD OF EXTRACTING PURE ELEMENTS OF THE METAL AND MATALLOID CLASS AND OF THE TYPE OF ARSENIC, ANTIMONY, BERYLLIUM, CADMIUM AND MAGNESIUM FROM POOR GANGUES COMPRISING MOLTEN METAL SILICATES THAT COMPRISES FUSING AND REDUCING THE SILICATES AND VAPORIZING THE RELEASED METAL IN A CLOSED FURNACE BY MEANS OF ELECTRODES WHICH PASS HEATING CURRENT THROUGH THE MOLTEN SILICATES, SAID ELECTRODES BEING POROUS, HOLLOW REDUCING AGENTS, HAVING PORES ON THE ORDER OF 5-50 MICRONS, AND ESTABLISING A DIFFERENTIAL PRESSURE BETWEEN THE INSIDE AND OUTSIDE OF THE ELECTRODES TENDING TO DRAW THE REDUCED METAL INTO THE HOLLOWS OF THE ELECTRODES, AND CONDENSING THE REDUCED METAL AFTER IT IS DRAWN FROM THE BATH.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-26 | 1959-12-26 | 1960-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-26 | 1963-12-26 | 1964-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-26 | 1967-12-26 | 1968-06-26 | $7700.00 | Window Closed / Lapsed |