US2058563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knee exerciser
Assignee: Individual
•
Filing: 1934-12-19
•
Granted: 1936-10-27
•
Expires: 1954-12-19
Abstract
No abstract record available.
Inventors
- 👤 Harry J Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:47
CPC Classifications
A; A61; A61H; A61H1/00; A61H1/02; A61H1/0237; A61H1/0255; A61H1/0259; A61H2201/00; A61H2201/12; A61H2201/1253; A61H2201/1261; A61H2201/1269
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) | 1939-10-27 | 1940-04-27 | 1940-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-10-27 | 1944-04-27 | 1944-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-10-27 | 1948-04-27 | 1948-10-27 | $7700.00 | Window Closed / Lapsed |