US2931846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric battery plate
Assignee: Exide Technologies LLC
•
Filing: 1956-09-10
•
Granted: 1960-04-05
•
Expires: 1976-09-10
Abstract
No abstract record available.
Inventors
- 👤 William A Cunningham
- 👤 Leo E Pucher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:18
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A PASTED TYPE NEGATIVE PLATE FOR ELECTRIC BATTERIES OF THE SILVER-ZINC TYPE COMPRISING A METALLIC CONDUCTING SCREEN, SAID SCREEN BEARING AN ACTIVE MATERIAL MASS CONSISTING OF ZINC OXIDE, AND CARBOXYMETHYL CELLULOSE DISPERSED THROUGHOUT SAID ZINC OXIDE IN AN AMOUNT OF FROM ABOUT 0.01% TO ABOUT 0.06% BY WEIGHT OF DRY ZINC OXIDE.
Claim 2
Dependent Claim
52 words
A PASTED TYPE NEGATIVE PLATE FOR ELECTRIC BATTERIES OF THE SILVER-ZINC TYPE COMPRISING A METALLIC CONDUCTING SCREEN, SAID SCREEN BEARING AN ACTIVE MATERIAL MASS CONSISTING OF ZINC OXIDE, AND CARBOXYMETHYL CELLULOSE DISPERSED THROUGHOUT SAID ZINC OXIDE IN AN AMOUNT OF FROM ABOUT 0.01% TO ABOUT 0.06% BY WEIGHT OF DRY ZINC OXIDE.
References Cited (Backward Citations)
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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) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |