Patent US2080510A successfully refreshed from Google Patents.
US2530286A
Expired / Lapsed
US
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Foot control for artificial legs
Assignee: Individual
•
Filing: 1948-01-28
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Granted: 1950-11-14
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Expires: 1968-01-28
Abstract
No abstract record available.
Inventors
- 👤 John G Catranis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:03
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/68; A61F2/60; A61F2/604; A61F2/64; A61F2/74; A61F2/748; A61F2/66; A61F2002/6614; A61F2002/6854
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) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |