Patent US645576A successfully refreshed from Google Patents.
US645576A
Expired / Lapsed
US
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System of transmission of electrical energy.
Assignee: Individual
•
Filing: 1897-09-02
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Granted: 1900-03-20
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Expires: 1917-09-02
Abstract
No abstract record available.
Inventors
- 👤 Nikola Tesla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:45
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/14; H04; H04L; H04L25/00; H04L25/38; H04L25/40; H04L25/49; H04L25/4902; H04W; H04W16/00; H04W16/14
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) | 1903-03-20 | 1903-09-19 | 1904-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-03-20 | 1907-09-19 | 1908-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-03-20 | 1911-09-19 | 1912-03-20 | $7700.00 | Window Closed / Lapsed |