US2865974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Negative plates and the production thereof
Assignee: Exide Technologies LLC
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Filing: 1955-04-28
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Granted: 1958-12-23
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Expires: 1975-04-28
Abstract
No abstract record available.
Inventors
- 👤 Robert F Scheuerle
- 👤 John B Metzinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:36
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/26; H01M4/30; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A METHOD OF PRODUCING NEGATIVE PLATES FOR SILVERZINC BATTERIES WHICH COMPRISES THE STEPS OF MIXING ABOUT 95% TO ABOUT 99.5% ZINC OXIDE WITH ABOUT 0.5% TO ABOUT 5% OF A POWDERED METALLIC HYDROXIDE SELECTED FROM THE GROUP CONSISTING OF LITHIUM HYDROXIDE, POTASSIUM HYDROXIDE, AND SODIUM HYDROXIDE, ADDING MOISTURE IN AN AMOUNT NOT SUBSTANTIALLY EXCEEDING THE WEIGHT OF THE SELECTED HYDROXIDE, AND PRESSING THE RESULTANT DRY MIXTURE ONTO A CONDUCTING MEMBER.
Claim 2
Independent Claim
70 words
A METHOD OF PRODUCING NEGATIVE PLATES FOR SILVERZINC BATTERIES WHICH COMPRISES THE STEPS OF MIXING ABOUT 95% TO ABOUT 99.5% ZINC OXIDE WITH ABOUT 0.5% TO ABOUT 5% OF A POWDERED METALLIC HYDROXIDE SELECTED FROM THE GROUP CONSISTING OF LITHIUM HYDROXIDE, POTASSIUM HYDROXIDE, AND SODIUM HYDROXIDE, ADDING MOISTURE IN AN AMOUNT NOT SUBSTANTIALLY EXCEEDING THE WEIGHT OF THE SELECTED HYDROXIDE, AND PRESSING THE RESULTANT DRY MIXTURE ONTO A CONDUCTING MEMBER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |