US3629154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin electrically conductive nonporous polymeric film
Assignee: ESB Inc
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Filing: 1969-10-30
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Granted: 1971-12-21
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Expires: 1989-10-30
Abstract
Abstract A THIN, ELECTRICALLY CONDUCTIVE, NONPOROUS POLYMERIC FILM CONTAINING FROM ABOUT 20 TO ABOUT 40% BY WEIGHT OF AN ETHYLENE/VINYL ACETATE COPOLYMER, UP TO ABOUT 10% BY WEIGHT OF POLYISOBUTYLENE, AND AN ELECTRICALLY CONDUCTIVE INGREDIENT. THE FILM, WHICH IS UNSUPPORTED, HAS A THICKNESS OF LESS THAN ABOUT 10 MILS AND IS PARTICULARLY ADAPTED FOR USE AS AN ELECTRICAL CONNECTOR IN AN ELECTRIC BATTERY. WHEN USED AS AN ELECTRICAL CONNECTOR IN A BATTERY, THE FILM SHOULD HAVE A TRANSVERSE ELECTRICAL RESISTIVITY OF LESS THAN ABOUT 5 OHOM-CM, AND A LONGITUDINAL ELECTRICAL RESISTIVITY OF LESS THAN ABOUT 2 OHM-CM.
Inventors
- 👤 Martin H Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:00
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/20; H01B1/24; H01B1/22; H01M; H01M50/00; H01M50/50; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |