Patent US2542989A successfully refreshed from Google Patents.
US2542989A
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Electrolytic cell
Assignee: Imperial Chemical Industries Ltd
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Filing: 1946-09-09
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Granted: 1951-02-27
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Expires: 1966-09-09
Abstract
No abstract record available.
Inventors
- 👤 Carter Charles
- 👤 John V S Glass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:54
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/30; C25B9/303; C25B9/70; C25B11/00; C25B11/02; C25B11/033; C25B9/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
AN ELECTROLYTIC CELL OF THE LIQUID ELECTRODE TYPE HAVING A BASE CARRYING A FLOWING LIQUID ELECTRODE, A COVER ON THE BASE EXTENDING ACROSS THE CELL BEYOND THE EDGES OF THE LIQUID ELECTRODE, A SOLID ELECTRODE RIGIDLY SUPPORTED IN THE CELL BY SAID COVER, SAID SOLID ELECTRODE HAVING A PLANE UNDER-SURFACE DISPOSED A SHORT DISTANCE ABOVE THE UPPER SURFACE OF THE LIQUID ELECTRODE AND SUBSTANTIALLY PARALLEL THERETO, SAID PLANE SURFACE EXTENDING CONTINUOUSLY ACROSS THE MAJOR PORTION OF THE CELL, MEANS COMBINED WITH THE COVER FOR ADJUSTING THE HEIGHT OF THE COVER RELATIVE TO THE BASE COMPRISING A PLURALITY OF HORIZONTAL EXTENSIONS ON SAID COVER WHICH BEAR UPON VERTICALLY ADJUSTABLE SUPPORT MEMBERS CARRIED BY SAID BASE, AND MEANS FOR SEALING THE COVER TO THE BASE FOR ALLOWING APPRECIABLE RELATIVE VERTICAL MOVEMENT BETWEEN THE COVER AND THE BASE COMPRISING AN ELONGATED, RESILIENT ELEMENT OF A LENGTH CORRESPONDING TO THE PERIMETER OF SAID BASE IN SEALING ENGAGEMENT WITH THE PERIPHERAL EDGES OF SAID COVER AND SAID BASE.
Claim 2
Dependent Claim
163 words
AN ELECTROLYTIC CELL OF THE LIQUID ELECTRODE TYPE HAVING A BASE CARRYING A FLOWING LIQUID ELECTRODE, A COVER ON THE BASE EXTENDING ACROSS THE CELL BEYOND THE EDGES OF THE LIQUID ELECTRODE, A SOLID ELECTRODE RIGIDLY SUPPORTED IN THE CELL BY SAID COVER, SAID SOLID ELECTRODE HAVING A PLANE UNDER-SURFACE DISPOSED A SHORT DISTANCE ABOVE THE UPPER SURFACE OF THE LIQUID ELECTRODE AND SUBSTANTIALLY PARALLEL THERETO, SAID PLANE SURFACE EXTENDING CONTINUOUSLY ACROSS THE MAJOR PORTION OF THE CELL, MEANS COMBINED WITH THE COVER FOR ADJUSTING THE HEIGHT OF THE COVER RELATIVE TO THE BASE COMPRISING A PLURALITY OF HORIZONTAL EXTENSIONS ON SAID COVER WHICH BEAR UPON VERTICALLY ADJUSTABLE SUPPORT MEMBERS CARRIED BY SAID BASE, AND MEANS FOR SEALING THE COVER TO THE BASE FOR ALLOWING APPRECIABLE RELATIVE VERTICAL MOVEMENT BETWEEN THE COVER AND THE BASE COMPRISING AN ELONGATED, RESILIENT ELEMENT OF A LENGTH CORRESPONDING TO THE PERIMETER OF SAID BASE IN SEALING ENGAGEMENT WITH THE PERIPHERAL EDGES OF SAID COVER AND SAID BASE.
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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) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |