US2046069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knee joint for artificial legs
Assignee: Individual
•
Filing: 1934-02-16
•
Granted: 1936-06-30
•
Expires: 1954-02-16
Abstract
No abstract record available.
Inventors
- 👤 Greissinger Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:13
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/60; A61F2/64; A61F2/642; A61F2/644
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) | 1939-06-30 | 1939-12-30 | 1940-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-06-30 | 1943-12-30 | 1944-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-06-30 | 1947-12-30 | 1948-06-30 | $7700.00 | Window Closed / Lapsed |