US3244562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery lead oxide products
Assignee: ASSOCIATED LEAD Inc A CORPOF DEL
•
Filing: 1961-02-16
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Granted: 1966-04-05
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Expires: 1981-02-16
Abstract
No abstract record available.
Inventors
- 👤 Frederick M Coppersmith
- 👤 George J Vahrenkamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:56
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/56; H01M4/57; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
A LEAD STORAGE BATTERY PLATE COMPRISING A GRID HAVING A LEAD OXIDE COATING APPLIED TO IT PRODUCED BY SUBJECTING TO THE HYDROSETTING PROCESS A PASTE COMPRISING SULFURIC ACID AND A BATTERY OXIDE PRODUCT CONSISTING ESSENTIALLY OF A MIXTURE OF FINELY-DIVIDED PARTICLES OF METALLIC LEAD AND FINELY-DIVIDED PARTICLES OF LITHARGE MOST OF WHICH ARE IN THE TETRAGONAL CRYSTAL FORM, THE METALLIC LEAD PARTICLES CONSTITUTING AT LEAST ABOUT 38% BY WEIGHT OF THE PRODUCT AND BEING ESSENTIALLY FLAT PLATELETS HAVING AN AVERAGE THICKNESS OF BETWEEN ABOUT 1 AND 1.5 MICRONS.
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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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |