US3709738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a battery separator from a web of non-woven polymeric fibers
Assignee: High Energy Processing Corp
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Filing: 1971-07-06
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Granted: 1973-01-09
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Expires: 1991-07-06
Abstract
Abstract A METHOD OF MAKING A BATTERY SEPARATOR FOR ALKALINE STORAGE BATTERIES OF THE NON-WOVEN FIBER MAT TYPE; THE FIBER MAT BEING IMPREGNATED WITH A POLYMERIC BINDER AND A MONOMERIC WETTING AGENT, THE THUS IMPREGNATED MAT BEING SUBJECTED TO IRRADIATION TO FORM A CROSS-LIKED UNITARY STRUCTURE.
Inventors
- 👤 T Wetherell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:15
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/40; H01M50/409; H01M50/44; H01M50/411; H01M50/414; H01M50/417; H01M50/42; H01M50/423; H01M50/463; H01M50/469; H01M50/489; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |