Patent US2951026A successfully refreshed from Google Patents.
US2951026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mercury cathode electrolytic cell
Assignee: De Nora SpA
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Filing: 1957-06-21
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Granted: 1960-08-30
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Expires: 1977-06-21
Abstract
No abstract record available.
Inventors
- 👤 Messner Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:36
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/02; C25B11/033; C25B9/00; C25B9/005; C25B9/30; C25B9/303; C25B9/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
AN ELECTROLYTIC APPARATUS HAVING A MERCURY CATHODE, WHICH COMPRISES A HOLLOW ROTATING CYLINDRICAL SHAFT DISPOSED SUBSTANTIALLY VERTICALLY, A PLURALITY OF CIRCULAR PLATES ATTCHED TO SAID SHAFT EXTERNALLY ALONG ITS AXIS, ANODES AND SUPPORTING MEANS THEREFORE ABOVE EACH OF SAID PLATES, A SHELL ENCLOSING SAID SHAFT AND PLATES, MEANS IN SAID SHELL FOR INTRODUCING AN ELECTROLYTIC SOLUTION AND MERCURY ONTO EACH OF SAID PLATES, AND CONDUIT MEANS COMMUNICATING WITH SAID PLATES THROUGH SAID SHAFT FOR WITHDRAWING AMALGAM FROM EACH OF SAID PLATES.
Claim 2
Dependent Claim
81 words
AN ELECTROLYTIC APPARATUS HAVING A MERCURY CATHODE, WHICH COMPRISES A HOLLOW ROTATING CYLINDRICAL SHAFT DISPOSED SUBSTANTIALLY VERTICALLY, A PLURALITY OF CIRCULAR PLATES ATTCHED TO SAID SHAFT EXTERNALLY ALONG ITS AXIS, ANODES AND SUPPORTING MEANS THEREFORE ABOVE EACH OF SAID PLATES, A SHELL ENCLOSING SAID SHAFT AND PLATES, MEANS IN SAID SHELL FOR INTRODUCING AN ELECTROLYTIC SOLUTION AND MERCURY ONTO EACH OF SAID PLATES, AND CONDUIT MEANS COMMUNICATING WITH SAID PLATES THROUGH SAID SHAFT FOR WITHDRAWING AMALGAM FROM EACH OF SAID PLATES.
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) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |