US3484871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial foot
Assignee: JOHN L ORANGE
•
Filing: 1968-12-02
•
Granted: 1969-12-23
•
Expires: 1988-12-02
Abstract
No abstract record available.
Inventors
- 👤 John L Orange
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:57
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/60; A61F2/66; A61F2002/6614; A61F2002/6657
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US518658A
Cited
DE361972C
Cited
US1219374A
Cited
US1420330A
Cited
US1704065A
Cited
US2289154A
Cited
US3098239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |