US22457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus foe walkingr on the water
Assignee: —
•
Filing: —
•
Granted: 1858-12-28
•
Expires: 1875-12-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:38
CPC Classifications
B; B63; B63B; B63B34/00; B63B34/50; B63B34/56
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) | 1861-12-27 | 1862-06-28 | 1862-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1865-12-27 | 1866-06-28 | 1866-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1869-12-27 | 1870-06-28 | 1870-12-28 | $7700.00 | Window Closed / Lapsed |