US593050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternating-current regulator
Assignee: —
•
Filing: —
•
Granted: 1897-11-02
•
Expires: 1914-11-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:47
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/14; G05F1/147
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) | 1900-11-02 | 1901-05-04 | 1901-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1904-11-02 | 1905-05-04 | 1905-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1908-11-02 | 1909-05-04 | 1909-11-03 | $7700.00 | Window Closed / Lapsed |