Patent US884664A successfully refreshed from Google Patents.
US884664A
Expired / Lapsed
US
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Depolarizer for galvanic batteries.
Assignee: Individual
•
Filing: 1907-05-14
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Granted: 1908-04-14
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Expires: 1927-05-14
Abstract
No abstract record available.
Inventors
- 👤 Ernst Waldemar Jungner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:20
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/10; H01M8/1009; H01M8/1011; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
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) | 1911-04-14 | 1911-10-14 | 1912-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-04-14 | 1915-10-14 | 1916-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-04-14 | 1919-10-14 | 1920-04-14 | $7700.00 | Window Closed / Lapsed |