US1966574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial knee joint
Assignee: Individual
•
Filing: 1933-01-30
•
Granted: 1934-07-17
•
Expires: 1953-01-30
Abstract
No abstract record available.
Inventors
- 👤 Henry H Wenneborg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:22
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/60; A61F2/64; A61F2002/5067; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32114; Y10T403/32221; Y10T403/32606; Y10T403/32861; Y10T403/32893; Y10T403/32909
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) | 1937-07-16 | 1938-01-15 | 1938-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-07-16 | 1942-01-15 | 1942-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-07-16 | 1946-01-15 | 1946-07-17 | $7700.00 | Window Closed / Lapsed |