Patent US2729694A successfully refreshed from Google Patents.
Patent US3709820A successfully refreshed from Google Patents.
US3709820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid electrolyte
Assignee: Panasonic Holdings Corp
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Filing: 1971-02-25
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Granted: 1973-01-09
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Expires: 1991-02-25
Abstract
Abstract AN IONICALLY CONDUCTIVE ORGANIC SOLID MATERIAL IS PROVIDED, WHICH IS USEFUL FOR AN ELECTROLYTE FOR ELECTRIC DEVICES. THE MATERIAL IS A CRYSTALLINE ELECTRON DONOR-ACCEPTOR COMPLEX COMPRISING IONIC CRYSTALS COMPOSED OF 7,7,8,8TETRACYANOQUINODIMETHANE, AN AROMATIC DIAMINE, AND A LIQUID IMPREGNATED IN THE LATTICES OF THE IONIC CRYSTALS SO THAT THE MATERIAL HAS THE EXCELLENT IONIC CONDUCTIVITY SUITABLE FOR AN ELECTROLYTE.
Inventors
- 👤 S Yoshimura
- 👤 S Asakawa
- 👤 K Hasegawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:47
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/022; H01G9/025; H01G9/028; H01M; H01M6/00; H01M6/14; H01M6/18; H01M6/181
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) | 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 |