US2357893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ankle joint for artificial limbs
Assignee: Individual
•
Filing: 1943-06-14
•
Granted: 1944-09-12
•
Expires: 1963-06-14
Abstract
No abstract record available.
Inventors
- 👤 Noel F Harrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:10
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/60; A61F2/66; A61F2/6607; A61F2/02; A61F2/30; A61F2002/30001; A61F2002/30003; A61F2002/30004; A61F2002/30014; A61F2002/30108; A61F2002/30199; A61F2002/30252; A61F2002/30253; A61F2002/5007; A61F2002/5009; A61F2230/00; A61F2230/0063; A61F2230/0073; A61F2230/0076; A61F2250/00; A61F2250/0014; A61F2250/0018; Y; Y10; Y10T; Y10T403/00; Y10T403/45
Claims Analysis
Total Claims: 0
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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) | 1947-09-12 | 1948-03-13 | 1948-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-09-12 | 1952-03-13 | 1952-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-09-12 | 1956-03-13 | 1956-09-12 | $7700.00 | Window Closed / Lapsed |