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US460680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc-lamp electrode
Assignee: —
•
Filing: —
•
Granted: 1891-10-06
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Expires: 1908-10-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:38
CPC Classifications
H; H05; H05B; H05B31/00; H05B31/0081; H05B31/009
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) | 1894-10-05 | 1895-04-06 | 1895-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1898-10-05 | 1899-04-06 | 1899-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1902-10-06 | 1903-04-07 | 1903-10-07 | $7700.00 | Window Closed / Lapsed |