US2952604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolysis apparatus
Assignee: De Nora SpA
•
Filing: 1955-05-23
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Granted: 1960-09-13
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Expires: 1975-05-23
Abstract
No abstract record available.
Inventors
- 👤 Nora Vittorio De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:53
CPC Classifications
C; C05; C05B; C05B19/00; C25; C25B; C25B1/00; C25B1/01; C25B1/34; C25B1/36; C25B11/00; C25B11/02; C25B11/033; C25B9/00; C25B9/005; C25B9/30; C25B9/305; C25B9/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN A ELECTROLYTIC CELL, A SUBSTANTIALLY VERTICAL PERFORATED METAL PLATE CATHODE SUPPORT, A FLOWING FILM OF MERCURY AMALGAM ON SAID SUPPORT FORMING A CATHODE, AN ANODE PARALLEL THEREWITH, A DIAPHRAGM BETWEEN THE ANODE AND THE CATHODE, SURROUNDING FLUID-TIGHT WALLS ENCLOSING SAID CATHODE AND ANODE, MEANS TO FLOW A MERCURY AMALGAM DOWNWARDLY OVER SAID CATHODE SUPPORT, COMPRISING AN AMALGAM DISTRIBUTION HEADER SPACED ON EACH SIDE OF SAID PERFORATED METAL PLATE CATHODE SUPPORT AND EXTENDING FROM SIDE TO SIDE OF SAID PLATE AND MEANS TO PROTECT SAID AMALGAM FROM CONTACT WITH ALL GASES BETWEEN THE POINT WHERE IT LEAVES SAID HEADER AND ENTERS THE ELECTROLYTE, MEANS TO FLOW AN ELECTROLYTE THROUGH SAID CELL, MEANS TO MAINTAIN A SUBSTANTIALLY CONSTANT LEVEL OF ELECTROLYTE IN SAID CELL MEANS TO VENT GASES THEREFROM, AND MEANS TO IMPRESS AN ELECTROLYSIS CURRENT BETWEEN SAID ANODE AND SAID CATHODE.
Claim 2
Dependent Claim
141 words
IN A ELECTROLYTIC CELL, A SUBSTANTIALLY VERTICAL PERFORATED METAL PLATE CATHODE SUPPORT, A FLOWING FILM OF MERCURY AMALGAM ON SAID SUPPORT FORMING A CATHODE, AN ANODE PARALLEL THEREWITH, A DIAPHRAGM BETWEEN THE ANODE AND THE CATHODE, SURROUNDING FLUID-TIGHT WALLS ENCLOSING SAID CATHODE AND ANODE, MEANS TO FLOW A MERCURY AMALGAM DOWNWARDLY OVER SAID CATHODE SUPPORT, COMPRISING AN AMALGAM DISTRIBUTION HEADER SPACED ON EACH SIDE OF SAID PERFORATED METAL PLATE CATHODE SUPPORT AND EXTENDING FROM SIDE TO SIDE OF SAID PLATE AND MEANS TO PROTECT SAID AMALGAM FROM CONTACT WITH ALL GASES BETWEEN THE POINT WHERE IT LEAVES SAID HEADER AND ENTERS THE ELECTROLYTE, MEANS TO FLOW AN ELECTROLYTE THROUGH SAID CELL, MEANS TO MAINTAIN A SUBSTANTIALLY CONSTANT LEVEL OF ELECTROLYTE IN SAID CELL MEANS TO VENT GASES THEREFROM, AND MEANS TO IMPRESS AN ELECTROLYSIS CURRENT BETWEEN SAID ANODE AND SAID CATHODE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |