Patent US2571491A successfully refreshed from Google Patents.
US809875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial limb.
Assignee: Individual
•
Filing: 1904-06-18
•
Granted: 1906-01-09
•
Expires: 1924-06-18
Abstract
No abstract record available.
Inventors
- 👤 George E Wilkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:05
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/60; A61F2/66; A61F2/78; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30316; A61F2002/30329; A61F2002/30433; A61F2002/5003; A61F2002/5038; A61F2002/5043; A61F2002/5072; A61F2002/5073; A61F2002/5075; A61F2002/607; A61F2002/6614; A61F2002/6621; A61F2220/00; A61F2220/0025; A61F2220/0041
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) | 1909-01-08 | 1909-07-10 | 1910-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-01-08 | 1913-07-10 | 1914-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-01-08 | 1917-07-10 | 1918-01-09 | $7700.00 | Window Closed / Lapsed |