US2629876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic control system for artificial limbs
Assignee: Individual
•
Filing: 1948-03-04
•
Granted: 1953-03-03
•
Expires: 1968-03-04
Abstract
No abstract record available.
Inventors
- 👤 Robert S Fullerton
- 👤 John J Fullerton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:48
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/54; A61F2/58; A61F2/60; A61F2/604; A61F2/68; A61F2/70; A61F2/74
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR530623A
Cited
FR523329A
Cited
FR530887A
Cited
FR25532E
Cited
US2182214A
Cited
US2442530A
Cited
US2429866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |