US2568051A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial leg
Assignee: Individual
•
Filing: 1947-10-10
•
Granted: 1951-09-18
•
Expires: 1967-10-10
Abstract
No abstract record available.
Inventors
- 👤 John G Catranis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:46
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/60; A61F2/604; A61F2/68; A61F2/74; A61F2/748; A61F2/64; A61F2002/6818; A61F2002/6854; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7778; Y10T137/7779; Y10T137/8593; Y10T137/86928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB132533A
Cited
DE306870C
Cited
DE319342C
Cited
US758020A
Cited
FR530887A
Cited
US1438696A
Cited
US1998873A
Cited
US2305291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |