US2913382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing metals electrolytically
Assignee: Union Carbide Corp
•
Filing: 1957-01-28
•
Granted: 1959-11-17
•
Expires: 1977-01-28
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Everts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:30
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A SINGLE-STEP ELECTROLYTIC METHOD FOR PRODUCING IN A PURE FORM ALKALINE EARTH METALS IN AN ELECTROLYTIC CELL WHICH COMPRISES PROVIDING IN SAID CELL AN ELECTROLYTE COMPRISING AT LEAST ONE MEMBER SELECTEDF FROM THE GROUP CONSISTING OF THE CHLORIDES AND FLUORIDES OF THE ALKALINE EARTH METALS, SEPARATING THE SPACE IN SAID CELL ABOVE THE NORMAL ELECTROLYTE LEVEL INTO AN ANODE COMPARTMENT AND A CATHODE COMPARTMENT, PROVIDING IN THE UPPER PORTION OF SAID CELL A SURFACE ON WHICH THE METAL PRODUCED AND EVOLVED AT THE CATHODE CAN CONDENSE AND SOLIDIFY, ESTABLISHING SUB-ATMOSPHERIC PRESSURES IN SAID COMPARTMENTS, PROVIDING A FUSED BATH BY HEATING THE ELECTROLYTE TO A TEMPERATURE AT WHICH THE METAL TO BE PRODUCED BOILS AT THE SUB-ATMOSPHERIC PRESSURE IN THE CATHODE COMPARTMENT,
Claim 2
Dependent Claim
121 words
A SINGLE-STEP ELECTROLYTIC METHOD FOR PRODUCING IN A PURE FORM ALKALINE EARTH METALS IN AN ELECTROLYTIC CELL WHICH COMPRISES PROVIDING IN SAID CELL AN ELECTROLYTE COMPRISING AT LEAST ONE MEMBER SELECTEDF FROM THE GROUP CONSISTING OF THE CHLORIDES AND FLUORIDES OF THE ALKALINE EARTH METALS, SEPARATING THE SPACE IN SAID CELL ABOVE THE NORMAL ELECTROLYTE LEVEL INTO AN ANODE COMPARTMENT AND A CATHODE COMPARTMENT, PROVIDING IN THE UPPER PORTION OF SAID CELL A SURFACE ON WHICH THE METAL PRODUCED AND EVOLVED AT THE CATHODE CAN CONDENSE AND SOLIDIFY, ESTABLISHING SUB-ATMOSPHERIC PRESSURES IN SAID COMPARTMENTS, PROVIDING A FUSED BATH BY HEATING THE ELECTROLYTE TO A TEMPERATURE AT WHICH THE METAL TO BE PRODUCED BOILS AT THE SUB-ATMOSPHERIC PRESSURE IN THE CATHODE COMPARTMENT,
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) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |