Patent US3712834A successfully refreshed from Google Patents.
US3712834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deferred action battery
Assignee: ESB Inc
•
Filing: 1971-10-15
•
Granted: 1973-01-23
•
Expires: 1991-10-15
Abstract
Abstract A DEFERRED ACTION BATTERY IS DESCRIBED HAVING A CYLINDRICAL PLASTIC CONTAINER WITH METALLIC TERMINAL CONTACT PIECES AT EITHER END. THE BATTERY PLATES ARE ANNULAR IN SHAPE AND DEFINE A CENTRAL CYLINDRICAL CAVITY. WITHIN THE CAVITY ARE LOCATED A BISCUIT OF DRY PRESSED ELECTROLYTE, AN AMPOULE CONTAINING A SOLUTION OF POASSIUM CHROMATE, AND A PLUNGER. A PORTION OF THE PLUNGER PASSES THROUGH THE TOP OF THE BATTERY CONTAINER. THE BATTERY IS ACTIVATED BY FORCING THE PLUNGER INTO THE AMPOULE CAUSING IT TO BREAK. THE LIQUID WITHIN THEN DISSOLVES THE PERCHLORATE TO GIVE THE DESIRED ELECTROLYTE WHICH THEN PERMEATES AND ACTIVATES THE BATTERY.
Inventors
- 👤 J Doe
- 👤 R Niederberger
- 👤 M Curcio
- 👤 M Forker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:03
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30; H01M6/36; H01M6/38
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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |