Patent US3565694A successfully refreshed from Google Patents.
US3565694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bipolar electrode and method of making same
Assignee: Yardney International Corp
•
Filing: 1969-03-17
•
Granted: 1971-02-23
•
Expires: 1989-03-17
Abstract
Abstract A BIPOLAR ELECTRODE FOR USE IN A BATTERY IS FORMED BY LAMINATING A ZINC SHEET ONTO AN ALUMINUM FOIL AND SUCCESSIVELY DEPOSITING ON THE LATTER A PRESSURE-SENSITIVE ADHESIVE LAYER OF ISOBUTYLENE POLYMER OR COPOLYMER AND A TOUGHER SEALING LAYER OF ETHYLENE/VINYL-ACETATE COPOLYMER, BOTH POLYMERIC LAYERS BEING MADE CONDUCTIVE BY AN ADMIXTURE OF GRAPHITE IN ADDITION TO CARBON BLACK.
Inventors
- 👤 Roland F Chireau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:13
CPC Classifications
H; H01; H01M; H01M4/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |