Patent US4220353A successfully refreshed from Google Patents.
Patent US2616937A successfully refreshed from Google Patents.
US2616937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline accumulator
Assignee: Svenska Ackumulator Jungner AB
•
Filing: 1950-05-29
•
Granted: 1952-11-04
•
Expires: 1970-05-29
Abstract
No abstract record available.
Inventors
- 👤 Kullgren Bjarne Cecil Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:49
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/24; H01M10/42; H01M16/00; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |