US2547907A
Expired / Lapsed
US
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Magnesium primary cell
Assignee: Dow Chemical Co
•
Filing: 1949-01-27
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Granted: 1951-04-03
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Expires: 1969-01-27
Abstract
No abstract record available.
Inventors
- 👤 Ashford B Fry
- 👤 Roy C Kirk
- 👤 Percy F George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:09
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/38; H01M4/46; H01M6/00; H01M6/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
IN A PRIMARY CELL THE COMBINATION COMPRISING A MAGNESIUM ANODE, A MANGANESE DIOXIDEDEPOLARIZED CATHODE, AND AN ELECTROLYTE COMPRISING AN AQUEOUS SOLUTION OF AN INORGANIC BROMIDE SELECTED FROM THE GROUP CONSISTING OF THE BROMIDES OF THE ALKALI AND ALKALINE EARTH METALS.
Claim 2
Dependent Claim
40 words
IN A PRIMARY CELL THE COMBINATION COMPRISING A MAGNESIUM ANODE, A MANGANESE DIOXIDEDEPOLARIZED CATHODE, AND AN ELECTROLYTE COMPRISING AN AQUEOUS SOLUTION OF AN INORGANIC BROMIDE SELECTED FROM THE GROUP CONSISTING OF THE BROMIDES OF THE ALKALI AND ALKALINE EARTH METALS.
References Cited (Backward Citations)
US2343194A
Cited
US2445306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |