Patent US2724011A successfully refreshed from Google Patents.
US2724011A
Expired / Lapsed
US
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Storage battery separator and method of production
Assignee: Exide Technologies LLC
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Filing: 1951-12-03
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Granted: 1955-11-15
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Expires: 1971-12-03
Abstract
No abstract record available.
Inventors
- 👤 Howard J Strauss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:09
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/40; H01M50/409; H01M50/411; H01M50/414; H01M50/417; H01M50/429; H01M50/489; H01M50/491; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A STORAGE BATTERY SEPARATOR COMPRISINGA A MICROPOROUS SYNTHETIC RESIN MATRIX, AND A CELLULOSIC FILLER MATERIAL DEPOSITED IN THE PORES THEREOF.
Claim 2
Dependent Claim
20 words
A STORAGE BATTERY SEPARATOR COMPRISINGA A MICROPOROUS SYNTHETIC RESIN MATRIX, AND A CELLULOSIC FILLER MATERIAL DEPOSITED IN THE PORES THEREOF.
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) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |