Patent US457763A successfully refreshed from Google Patents.
US457763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric-light carbon
Assignee: —
•
Filing: —
•
Granted: 1891-08-11
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Expires: 1908-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:19
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M4/485; H01B; H01B1/00; H01B1/20; H01B1/24; 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) | 1894-08-10 | 1895-02-09 | 1895-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1898-08-10 | 1899-02-09 | 1899-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1902-08-11 | 1903-02-10 | 1903-08-12 | $7700.00 | Window Closed / Lapsed |