US2742420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic cell
Assignee: Diamond Shamrock Corp
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Filing: 1952-05-03
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Granted: 1956-04-17
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Expires: 1972-05-03
Abstract
No abstract record available.
Inventors
- 👤 Francis H Rockwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 21:34
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/17; C25B9/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
IN AN ELECTROLYTIC ALKALI-CHLORINE CELL, A CATHODE ASSEMBLY INCLUDING END CHAMBERS DEFINED BY CURRENT-CARRYING LIQUID-RETAINING FERROUS METAL INNER END WALLS AND COPPER CLAD FERROUS METAL OUTER END WALLS, SAID CHAMBERS COMMUNICATING WITH FERROUS METAL CATHODE ELECTRODES EXTENDING FROM SAID INNER END WALLS, SAID COPPER CLAD FERROUS METAL OUTER END WALLS HAVING THE COPPER CLADDING BONDED UNIFORMLY AND DIRECTLY TO THE SURFACE EXTERNAL TO SAID CHAMBER, AND A COPPER BUS BAR ATTACHED TO SAID COPPER CLADDING SO AS TO PROVIDE A COPPER-TO-COPPER BEND AND TO BE SUBSTANTIALLY INTEGRAL THEREWITH.
Claim 2
Dependent Claim
88 words
IN AN ELECTROLYTIC ALKALI-CHLORINE CELL, A CATHODE ASSEMBLY INCLUDING END CHAMBERS DEFINED BY CURRENT-CARRYING LIQUID-RETAINING FERROUS METAL INNER END WALLS AND COPPER CLAD FERROUS METAL OUTER END WALLS, SAID CHAMBERS COMMUNICATING WITH FERROUS METAL CATHODE ELECTRODES EXTENDING FROM SAID INNER END WALLS, SAID COPPER CLAD FERROUS METAL OUTER END WALLS HAVING THE COPPER CLADDING BONDED UNIFORMLY AND DIRECTLY TO THE SURFACE EXTERNAL TO SAID CHAMBER, AND A COPPER BUS BAR ATTACHED TO SAID COPPER CLADDING SO AS TO PROVIDE A COPPER-TO-COPPER BEND AND TO BE SUBSTANTIALLY INTEGRAL THEREWITH.
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) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |