Patent US368190A successfully refreshed from Google Patents.
US368190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Art of converting chemical energy into electrical
Assignee: —
•
Filing: —
•
Granted: 1887-08-16
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Expires: 1904-08-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:33
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/44; Y; Y02; Y02E; Y02E60/00; Y02E60/10
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) | 1890-08-15 | 1891-02-14 | 1891-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1894-08-15 | 1895-02-14 | 1895-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1898-08-15 | 1899-02-14 | 1899-08-16 | $7700.00 | Window Closed / Lapsed |