US2745893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cuprous chloride magnesium cell with cellophane membrane
Assignee: Eagle Picher Co
•
Filing: 1952-04-23
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Granted: 1956-05-15
•
Expires: 1972-04-23
Abstract
No abstract record available.
Inventors
- 👤 Melvin F Chubb
- 👤 James M Dines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:44
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M6/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
AN ELECTROLYTIC CELL COMPRISING A PASTED CUPROUS CHLORIDE POSITIVE ELECTRODE, MAGNESIUM NEGATIVE ELECTRODE, AT LEAST TWO BIBULOUS PADS ADAPTED TO RETAIN AQUEOUS ELECTROLYTE, SAID PADS DISPOSED BETWEEN SAID ELECTRODES WITH ONE OF SAID PADS BEING IN ENGAGEMENT WITH THE POSITIVE ELECTRODE AND WITH THE OTHER PAD BEING IN ENGAGEMENT WITH THE NEGATIVE ELECTRODE, AND A MEMBRANE WHICH IS SUBSTANTIALLY THIN IN RELATION TO SAID PADS AND OF A POROSITY SUBSTANTIALLY EQUAL OT THE POROSITY OF REGENERATED CELLULOSE, SAID MEMBRANE BEING SANDWICHED BETWEEN SAID PADS, WHEREBY THE MEMBRANE INHIBITS MIGRATION OF COPPER DEPOSITS FROM THE NEGATIVE ELECTRODETO THE POSITIVE ELECTODE.
Claim 2
Dependent Claim
99 words
AN ELECTROLYTIC CELL COMPRISING A PASTED CUPROUS CHLORIDE POSITIVE ELECTRODE, MAGNESIUM NEGATIVE ELECTRODE, AT LEAST TWO BIBULOUS PADS ADAPTED TO RETAIN AQUEOUS ELECTROLYTE, SAID PADS DISPOSED BETWEEN SAID ELECTRODES WITH ONE OF SAID PADS BEING IN ENGAGEMENT WITH THE POSITIVE ELECTRODE AND WITH THE OTHER PAD BEING IN ENGAGEMENT WITH THE NEGATIVE ELECTRODE, AND A MEMBRANE WHICH IS SUBSTANTIALLY THIN IN RELATION TO SAID PADS AND OF A POROSITY SUBSTANTIALLY EQUAL OT THE POROSITY OF REGENERATED CELLULOSE, SAID MEMBRANE BEING SANDWICHED BETWEEN SAID PADS, WHEREBY THE MEMBRANE INHIBITS MIGRATION OF COPPER DEPOSITS FROM THE NEGATIVE ELECTRODETO THE POSITIVE ELECTODE.
References Cited (Backward Citations)
USRE23427E
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US2199445A
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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) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |