US496701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for arc lamps
Assignee: —
•
Filing: —
•
Granted: 1893-05-02
•
Expires: 1910-05-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:54
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B37/026; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/929; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12625; Y10T428/12681; Y10T428/12729; Y10T428/12771; Y10T428/12785; Y10T428/12792; Y10T428/12861; Y10T428/12882; Y10T428/30
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) | 1896-05-01 | 1896-10-31 | 1897-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1900-05-02 | 1900-11-01 | 1901-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1904-05-02 | 1904-11-01 | 1905-05-03 | $7700.00 | Window Closed / Lapsed |