Patent US3696593A successfully refreshed from Google Patents.
Patent US523011A successfully refreshed from Google Patents.
US523011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ladder
Assignee: —
•
Filing: —
•
Granted: 1894-07-17
•
Expires: 1911-07-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:54
CPC Classifications
E; E06; E06C; E06C5/00; E06C5/26; E06C5/30; A; A62; A62B; A62B5/00
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) | 1897-07-16 | 1898-01-15 | 1898-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1901-07-17 | 1902-01-16 | 1902-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1905-07-17 | 1906-01-16 | 1906-07-18 | $7700.00 | Window Closed / Lapsed |