US3383294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for production of misch metal and apparatus therefor
Assignee: LYLE RUSSELL WOOD
•
Filing: 1965-01-15
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Granted: 1968-05-14
•
Expires: 1985-01-15
Abstract
No abstract record available.
Inventors
- 👤 Wood Lyle Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:53
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A METHOD OF PRODUCING SUBSTANTIALLY PURE MISCH METAL WHICH COMPRISES ELECTROLYTICALLY DECOMPOSING A MOLTEN ELECTROLYTE TO FORM A SUBSTANTIALLY PURE MELT OF MISCH METAL AND MECHANICALLY SEPARATING THE MELT FROM THE REMAINING ELECTROLYTE CONSISTING ESSENTIALLY OF AN OXIDE OF THE ELEMENTS COMPRISING MISCH METAL DISSOLVED IN A MAJOR AMOUNT OF THE FLUORIDES OF THE ELEMENTS OF MISCH METAL AND A MINOR AMOUNT OF AT LEAST ONE FLUORIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI FLUORIDES AND ALKALINE EARTH FLUORIDES.
Claim 2
Independent Claim
79 words
A METHOD OF PRODUCING SUBSTANTIALLY PURE MISCH METAL WHICH COMPRISES ELECTROLYTICALLY DECOMPOSING A MOLTEN ELECTROLYTE TO FORM A SUBSTANTIALLY PURE MELT OF MISCH METAL AND MECHANICALLY SEPARATING THE MELT FROM THE REMAINING ELECTROLYTE CONSISTING ESSENTIALLY OF AN OXIDE OF THE ELEMENTS COMPRISING MISCH METAL DISSOLVED IN A MAJOR AMOUNT OF THE FLUORIDES OF THE ELEMENTS OF MISCH METAL AND A MINOR AMOUNT OF AT LEAST ONE FLUORIDE SELECTED FROM THE GROUP CONSISTING OF ALKALI FLUORIDES AND ALKALINE EARTH FLUORIDES.
References Cited (Backward Citations)
US2961387A
Cited
US3062727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |