US3257296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for obtaining metals by fusion electrolysis
Assignee: Individual
•
Filing: 1964-05-08
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Granted: 1966-06-21
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Expires: 1984-05-08
Abstract
No abstract record available.
Inventors
- 👤 Berghaus Bernhard
- 👤 Dolder Grand Hotel
- 👤 Staesche Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:39
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/26; C25C3/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A PROCESS FOR RECOVERING A METAL BY FUSION ELECTROLYSIS COMPRISING THE STEPS OF ADDING TO AN ELECTROLYTE CONTAINING SAID METAL A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF COMPLEXED ADDITION COMPOUNDS OF THE FORMULA M(Z)N.(C)X WHERE M IS AL, MG, BE, CA, TI, ZR, HF, TH, V, NB, TA, MO, U, OR CE, N REPRESENTS THE VALENCE OF M, Z IS AN ANION OF THE GROUP CONSISTING OF HALIDE, NITRATE, NITRITE, CHLORATE OR PERCHLORATE, C. IS A COMPLEXING MOIETY OF THE GROUP CONSISTING OF AMMONIA, HYDRAZINE, HYDROXYLAMINE OR AN ORGANIC AMINE OR A PRODUCT DERIVED THEREFROM BY HEAT TREATMENT OF SAID COMPLEXED ADDITION COMPOUND IN AN OXYGEN FREE GAS PROTECTIVE ATMOSPHERE TO A TEMPERATURE EXCEEDING 200* C. UNTIL EVOLUTION OF AN AMMONIUM SALT OF SAID ANION CEASES TO FORM A PRODUCT OF
Claim 2
Dependent Claim
132 words
A PROCESS FOR RECOVERING A METAL BY FUSION ELECTROLYSIS COMPRISING THE STEPS OF ADDING TO AN ELECTROLYTE CONTAINING SAID METAL A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF COMPLEXED ADDITION COMPOUNDS OF THE FORMULA M(Z)N.(C)X WHERE M IS AL, MG, BE, CA, TI, ZR, HF, TH, V, NB, TA, MO, U, OR CE, N REPRESENTS THE VALENCE OF M, Z IS AN ANION OF THE GROUP CONSISTING OF HALIDE, NITRATE, NITRITE, CHLORATE OR PERCHLORATE, C. IS A COMPLEXING MOIETY OF THE GROUP CONSISTING OF AMMONIA, HYDRAZINE, HYDROXYLAMINE OR AN ORGANIC AMINE OR A PRODUCT DERIVED THEREFROM BY HEAT TREATMENT OF SAID COMPLEXED ADDITION COMPOUND IN AN OXYGEN FREE GAS PROTECTIVE ATMOSPHERE TO A TEMPERATURE EXCEEDING 200* C. UNTIL EVOLUTION OF AN AMMONIUM SALT OF SAID ANION CEASES TO FORM A PRODUCT OF
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |