US2591373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lockable knee joint for orthopedic braces or artificial limbs
Assignee: Individual
•
Filing: 1950-12-16
•
Granted: 1952-04-01
•
Expires: 1970-12-16
Abstract
No abstract record available.
Inventors
- 👤 Petruch Methodius Ciryllus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:50
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/0102; A61F5/0123; A61F5/0125; A61F2/00; A61F2/50; A61F2/60; A61F2/64; A61F2/68; A61F2002/6854; A61F2005/0132; A61F2005/0158; A61F2005/016; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32319; Y10T403/32409
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |