US2899369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Special electrolytic processing
Assignee: —
•
Filing: —
•
Granted: 1959-08-11
•
Expires: 1976-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:44
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/26; C25C3/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A PROCESS FOR THE ELECTROLYTIC PRODUCTION OF A PURE AND DUCTILE METAL OF THE GROUP COLUMBIUM AND TANTALUM COMPRISING ELECTROLYZING BETWEEN AN ANODE AND A CATHODE A MOLTEN ELECTROLYTE COMPRISING A SOLVENT MIXTURE OF AT LEAST ONE HALIDE OF THE GROUP OF ALKALINE EARTH HALIDES AND AT LEAST ONE OXIDE OF THE GROUP OF ALKALINE EARTH OXIDES, AND ALSO CONTAINING A SUBSTANTIAL AMOUNT OF AT LEAST ONE OXIDE OF THE SAID GROUP COLUMBIUM AND TANTALUM, THEREBY DISCHARGING OXYGEN AT SAID ANODE AND DEPOSITING SAID PURE AND DUCTILE METAL IN LARGE CRYSTALLINE FORM ON SAID CATHODE.
Claim 2
Dependent Claim
95 words
A PROCESS FOR THE ELECTROLYTIC PRODUCTION OF A PURE AND DUCTILE METAL OF THE GROUP COLUMBIUM AND TANTALUM COMPRISING ELECTROLYZING BETWEEN AN ANODE AND A CATHODE A MOLTEN ELECTROLYTE COMPRISING A SOLVENT MIXTURE OF AT LEAST ONE HALIDE OF THE GROUP OF ALKALINE EARTH HALIDES AND AT LEAST ONE OXIDE OF THE GROUP OF ALKALINE EARTH OXIDES, AND ALSO CONTAINING A SUBSTANTIAL AMOUNT OF AT LEAST ONE OXIDE OF THE SAID GROUP COLUMBIUM AND TANTALUM, THEREBY DISCHARGING OXYGEN AT SAID ANODE AND DEPOSITING SAID PURE AND DUCTILE METAL IN LARGE CRYSTALLINE FORM ON SAID CATHODE.
References Cited (Backward Citations)
US1905882A
Cited
US1815054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |