Patent USRE18907E successfully refreshed from Google Patents.
Patent US3470083A successfully refreshed from Google Patents.
US3470083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic cell cathode bottom with vertically inserted current conductor
Assignee: Vereinigte Aluminium Werke AG
•
Filing: 1964-10-27
•
Granted: 1969-09-30
•
Expires: 1984-10-27
Abstract
No abstract record available.
Inventors
- 👤 Friedrich Wilhelm Wrigge
- 👤 Ernst Weckesser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:44
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/06; C25C3/16; C25C3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN AN ELECTROLYTIC CELL FOR RECOVERY OF A METAL FROM A MOLTEN ELECTOLYTE CONTAINING THE SAME, IN COMBINATION, A VESSEL ADAPTED TO HOLD MOLTEN ELECTROLYTE, SAID VESSEL HAVING A BOTTOM FORMED OF A SUBSTANTIALLY HORIZONTALLY EXTENDING CARBONACEOUS CATHODE PLATE HAVING AN UPPER FACE ADAPTED TO CONTACT THE MOLTEN ELECTROLYTE OR MOLTEN METAL ELECTROLYTICALLY SEPARATED THEREFROM, AND A LOWER FACE; A PLURALITY OF CURRENT CONDUCTING NIPPLES EXTENDING SPACED FROM EACH OTHER IN SUBSTANTIALLY VERTICAL DIRECTION THROUGH SAID LOWER FACE OF SAID CATHODE PLATE INTO THE LAT-
Claim 2
Dependent Claim
85 words
IN AN ELECTROLYTIC CELL FOR RECOVERY OF A METAL FROM A MOLTEN ELECTOLYTE CONTAINING THE SAME, IN COMBINATION, A VESSEL ADAPTED TO HOLD MOLTEN ELECTROLYTE, SAID VESSEL HAVING A BOTTOM FORMED OF A SUBSTANTIALLY HORIZONTALLY EXTENDING CARBONACEOUS CATHODE PLATE HAVING AN UPPER FACE ADAPTED TO CONTACT THE MOLTEN ELECTROLYTE OR MOLTEN METAL ELECTROLYTICALLY SEPARATED THEREFROM, AND A LOWER FACE; A PLURALITY OF CURRENT CONDUCTING NIPPLES EXTENDING SPACED FROM EACH OTHER IN SUBSTANTIALLY VERTICAL DIRECTION THROUGH SAID LOWER FACE OF SAID CATHODE PLATE INTO THE LAT-
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) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |