US647671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Half to w
Assignee: —
•
Filing: —
•
Granted: 1900-04-17
•
Expires: 1917-04-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:43
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/611; E05F15/614; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
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) | 1903-04-17 | 1903-10-17 | 1904-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-04-17 | 1907-10-17 | 1908-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-04-17 | 1911-10-17 | 1912-04-17 | $7700.00 | Window Closed / Lapsed |