US3194685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing storage battery electrode active material
Assignee: Exide Technologies LLC
•
Filing: 1964-03-09
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Granted: 1965-07-13
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Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 James P Malloy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:58
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/56; H01M4/14; H01M4/16; H01M4/20; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A METHOD OF MANUFACTURING A STABLE, PRE-SULFATED, DRY ACTIVE MATERIAL FOR A LEAD-ACID STORAGE BATTERY ELECTRODE WHICH COMPRISES ADDING SULFURIC ACID AND WATER TO LEAD-LEAD OXIDE POWDER WHICH IS BEING VIGOROUSLY AGITATED, THOROUGHLY MIXING THE COMPOSITION, SAID WATER BEING ADDED IN AMOUNTS SUCH THAT THE WATER PRESENT IN THE COMPOSITION DOES NOT EXCEED ABOUT 8% BY WEIGHT OF THE LEADLEAD OXIDE POWDER, SAID SULFURIC ACID BEING ADDED IN AMOUNTS SUFFICIENT TO PRODUCE A DRY ACTIVE MATERIAL PRODUCT WHICH CONTAINS FROM ABOUT 5 TO ABOUT 50% BY WEIGHT OF LEAD SULFATE, DRYING SAID COMPOSITION SO THAT IT CONTAINS LESS THAN 1/2% BY WEIGHT OF WATER, AND RECOVERING IN THE FORM OF DISCRETE PARTICLES A STABLE, PRE-SULFATED, DRY ACTIVE MATERIAL FOR A LEAD-ACID STORAGE BATTERY ELECTRODE.
Claim 2
Independent Claim
124 words
A METHOD OF MANUFACTURING A STABLE, PRE-SULFATED, DRY ACTIVE MATERIAL FOR A LEAD-ACID STORAGE BATTERY ELECTRODE WHICH COMPRISES ADDING SULFURIC ACID AND WATER TO LEAD-LEAD OXIDE POWDER WHICH IS BEING VIGOROUSLY AGITATED, THOROUGHLY MIXING THE COMPOSITION, SAID WATER BEING ADDED IN AMOUNTS SUCH THAT THE WATER PRESENT IN THE COMPOSITION DOES NOT EXCEED ABOUT 8% BY WEIGHT OF THE LEADLEAD OXIDE POWDER, SAID SULFURIC ACID BEING ADDED IN AMOUNTS SUFFICIENT TO PRODUCE A DRY ACTIVE MATERIAL PRODUCT WHICH CONTAINS FROM ABOUT 5 TO ABOUT 50% BY WEIGHT OF LEAD SULFATE, DRYING SAID COMPOSITION SO THAT IT CONTAINS LESS THAN 1/2% BY WEIGHT OF WATER, AND RECOVERING IN THE FORM OF DISCRETE PARTICLES A STABLE, PRE-SULFATED, DRY ACTIVE MATERIAL FOR A LEAD-ACID STORAGE BATTERY ELECTRODE.
References Cited (Backward Citations)
US3124486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |