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US454622A
Expired / Lapsed
US
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System Of Electric Llghting
Assignee: Individual
•
Filing: —
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Granted: 1891-06-23
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Expires: 1908-06-23
Abstract
No abstract record available.
Inventors
- 👤 Nikola Tesla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:59
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/30; H05B41/34
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) | 1894-06-22 | 1894-12-22 | 1895-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1898-06-22 | 1898-12-22 | 1899-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1902-06-23 | 1902-12-23 | 1903-06-24 | $7700.00 | Window Closed / Lapsed |