US366544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical converter
Assignee: —
•
Filing: —
•
Granted: 1887-07-12
•
Expires: 1904-07-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:59
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/08; H01F27/10; H01F27/12; C; C10; C10M; C10M101/00; C10M101/02; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2040/00; C10N2040/14; C10N2040/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1890-07-11 | 1891-01-10 | 1891-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1894-07-11 | 1895-01-10 | 1895-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1898-07-11 | 1899-01-10 | 1899-07-12 | $7700.00 | Window Closed / Lapsed |