US2561943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric battery
Assignee: Thomas A Edison Inc
•
Filing: 1945-12-13
•
Granted: 1951-07-24
•
Expires: 1965-12-13
Abstract
No abstract record available.
Inventors
- 👤 Moulton Joseph Donald
- 👤 Robert F Enters
- 👤 Harry F Moufang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:54
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/66; H01M4/661; H01M10/00; H01M10/24; H01M6/00; H01M6/04; H01M6/30; H01M6/32; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A NEGATIVE PLATE FOR USE IN A BATTERY CELL WHICH COMPRISES A METALLIC WIRE GAUZE GRID SUPPORTING THE ACTIVE MATERIAL, SAID MATERIAL CONSISTING OF FINELY DIVIDED ZINC AND AN AMOUNT OF ALUMINUM POWDER MIXED WITH THE ZINC EQUIVALENT TO BETWEEN ABOUT 0.01% AND 1% BY WEIGHT OF THE ZINC, AND A WATER SOLUBLE BINDER HOLDING SAID ALUMINUM AND ZINC IN PLACE ON THE GRID.
Claim 2
Dependent Claim
64 words
A NEGATIVE PLATE FOR USE IN A BATTERY CELL WHICH COMPRISES A METALLIC WIRE GAUZE GRID SUPPORTING THE ACTIVE MATERIAL, SAID MATERIAL CONSISTING OF FINELY DIVIDED ZINC AND AN AMOUNT OF ALUMINUM POWDER MIXED WITH THE ZINC EQUIVALENT TO BETWEEN ABOUT 0.01% AND 1% BY WEIGHT OF THE ZINC, AND A WATER SOLUBLE BINDER HOLDING SAID ALUMINUM AND ZINC IN PLACE ON THE GRID.
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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) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |