Patent US2118626A successfully refreshed from Google Patents.
Patent US3885252A successfully refreshed from Google Patents.
US3885252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for uniting the thigh and lower leg
Assignee: Individual
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Filing: 1973-04-02
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Granted: 1975-05-27
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Expires: 1993-04-02
Abstract
Abstract A device comprising an upper joint member having a portion to be secured to the thigh, a lower joint member having a portion to be secured to the lower leg, and an intermediate joint member uniting the upper and lower joint members by an upper pin and lower pins pivotably at upper and lower two positions.
Inventors
- 👤 Hirofumi Nakajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:43
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/0102; A61F5/0123; A61F2/00; A61F2/02; A61F2/30; A61F2/38; A61F2/3836; A61F2/384; A61F2/50; A61F2/60; A61F2/64; A61F2/642; A61F2/644
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
275 words
A device for uniting the thigh and the lower leg to one another comprising a frame element forming an upper joint member, said frame element including an upper face to be secured to the distal end of the thigh and a pair of opposite side walls, the undersurface of each wall provided with a recess having a semicircular surface to form a pair of laterally spaced pin bearing portions, a lower joint member disposed beneath said upper joint member, said lower joint member including a bottom plate having an underface which is to be secured to the proximal end of the lower leg and an upper element extending upwardly from said bottom plate, said upper element having a recess formed in its upper edge, said recess having a semicircular surface and forming a centrally positioned pin bearing portion, an intermediate joint member positioned between said upper joint member and said lower joint member, said intermediate joint member having a configuration in the form of a crank and including a pair of laterally spaced vertically disposed leg portions, an upper, horizontally disposed pin portion connecting the upper end of each leg portion to one another, a lower, horizontally disposed pin portion extending outwardly from the lower end of each of said leg portions, each of said lower pin portions being fitted in the respective formed pin bearing portions of said formed upper joint member, and the upper pin portion of said intermediate joint member being fitted in the centrally positioned pin bearing portion of said lower joint member, thereby enabling the thigh and lower leg to be united pivotally at two upper and two lower positions.
Claim 2
Independent Claim
275 words
A device for uniting the thigh and the lower leg to one another comprising a frame element forming an upper joint member, said frame element including an upper face to be secured to the distal end of the thigh and a pair of opposite side walls, the undersurface of each wall provided with a recess having a semicircular surface to form a pair of laterally spaced pin bearing portions, a lower joint member disposed beneath said upper joint member, said lower joint member including a bottom plate having an underface which is to be secured to the proximal end of the lower leg and an upper element extending upwardly from said bottom plate, said upper element having a recess formed in its upper edge, said recess having a semicircular surface and forming a centrally positioned pin bearing portion, an intermediate joint member positioned between said upper joint member and said lower joint member, said intermediate joint member having a configuration in the form of a crank and including a pair of laterally spaced vertically disposed leg portions, an upper, horizontally disposed pin portion connecting the upper end of each leg portion to one another, a lower, horizontally disposed pin portion extending outwardly from the lower end of each of said leg portions, each of said lower pin portions being fitted in the respective formed pin bearing portions of said formed upper joint member, and the upper pin portion of said intermediate joint member being fitted in the centrally positioned pin bearing portion of said lower joint member, thereby enabling the thigh and lower leg to be united pivotally at two upper and two lower positions.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |