Patent US3749660A successfully refreshed from Google Patents.
US3749660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolyzer for production of magnesium
Assignee: Individual
•
Filing: 1971-02-10
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Granted: 1973-07-31
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Expires: 1991-02-10
Abstract
Abstract THE PRESENT INVENTION RELATES TO ELECTROLYZERS FOR PRODUCTION OF MAGNESIUM, HAVING CATHODES COMPLETELY IMMERSED IN THE ELECTROLYTE BATH. IN ACCORDANCE WITH THE INVENTION, EACH OF THE CATHODES, WITH THE EXCEPTION OF THE OUTERMOST TWO, ENCLOSES THE ASSOCIATED ANODE THEREINSIDE, THE INTERNAL SURFACE OF THE CATHODE BEING CONGRUENT WITH THE SURFACE OF THE ANODE. WITH THE CATHODES CONSTRUCTED IN THIS MANNER, THE YIELD OF ELECTROLYTE PER UNIT OF THE SURFACE OF THE ELECTROLYZER IS INCREASED BY 10 TO 12 PERCENT, AND EVEN HIGHER.
Inventors
- 👤 V Kuzmin
- 👤 A Kolesnikov
- 👤 V Kolesnikov
- 👤 M Nikolaev
- 👤 V Bashkatov
- 👤 V Sheka
- 👤 M Baibekov
- 👤 K Muzhzhavlev
- 👤 A Kolomiitsev
- 👤 K Strelets
- 👤 V Kamenev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:04
CPC Classifications
C; C25; C25C; C25C7/00; C25C7/005
Claims Analysis
Total Claims: 0
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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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |