US2605474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically controlled artificial leg
Assignee: Adel Precision Products Corp
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Filing: 1947-11-22
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Granted: 1952-08-05
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Expires: 1967-11-22
Abstract
No abstract record available.
Inventors
- 👤 Wilbur C Oliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:43
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/60; A61F2/604; A61F2/68; A61F2/74
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |