US3861398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foot balancing surface for shoes
Assignee: Individual
•
Filing: 1973-05-17
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Granted: 1975-01-21
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Expires: 1993-05-17
Abstract
Abstract The inner surface of a shoe which contacts the plantar surface of the foot is contoured to include a posterior, concave area having elevated side walls and adapted to receive and support the os calcis and restrain the same from lateral or medial movement with respect to the shoe, and a raised area for supporting the plantar protuberance of the fifth metatarsal bone. The surface preferably includes a raised, medial area intermediate the ends of the shoes and adapted to support the medial, longitudinal arch of the foot, and an anterior, convex portion adapted to support the anterior transverse tarsal arch. Disclosed also is a device for insertion within a shoe to provide the above-described surface.
Inventors
- 👤 Charles P Leydecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:06
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
79 words
In combination with a shoe, a surface contoured generally to the plantar surface of the foot including a posterior, concave area adapted to receive and support the os calcis and having side walls adapted to restrain the os calcis from lateral or medial movement with respect to the shoe, the anterior wall of the heel depression extending forwardly and upwardly to terminate in a substantially planar elevated, lateral supporting area for supporting the plantar protuberance of the fifth metatarsal.
Claim 2
Dependent Claim
79 words
In combination with a shoe, a surface contoured generally to the plantar surface of the foot including a posterior, concave area adapted to receive and support the os calcis and having side walls adapted to restrain the os calcis from lateral or medial movement with respect to the shoe, the anterior wall of the heel depression extending forwardly and upwardly to terminate in a substantially planar elevated, lateral supporting area for supporting the plantar protuberance of the fifth metatarsal.
Claim 3
Dependent Claim
39 words
The shoe of claim 1 wherein said surface includes a raised, medial area intermediate the ends of the shoe and adapted to support the medial longitudinal arch of the foot to restrain eversion thereof with respect to the shoe.
Claim 4
Dependent Claim
21 words
The shoe of claim 2 wherein said surface includes an anterior convex mound adapted to support the anterior transverse tarsal arch.
Claim 5
Dependent Claim
85 words
The shoe of claim 3 wherein, with respect to the curved surface of the shoe sole, the posterior concave surface area is at a first elevation, said raised, medial area intermediate the ends of the shoe and said anterior convex portion adapted to support the anterior transverse tarsal arch are at different, higher elevations, and wherein said raised area for supporting the plantar protuberance of the fifth metatarsal is at an elevation greater than said posterior concave area but less than said anterior, convex area.
Claim 6
Dependent Claim
39 words
The shoe of claim 1 wherein the surface is on a structure having a corresponding bottom surface, the bottom surface having a protuberance which in walking supports the distal end of the fifth metatarsus and the phalanges carried thereby.
Claim 7
Independent Claim
144 words
A device for insertion in a shoe and adapted to cooperate therewith in supporting a foot comprising an elongated insert of non-uniform thickness adapted to be disposed of an inner sole of the shoe, said insert having posterior, concave area with side walls adapted to receive and support the os calcis and to restrain the same from lateral or medial movement with respect to the shoe, a raised, medial area intermediate the ends of the shoe and adapted to support the medial longitudinal arch of the foot to restrain eversion of the foot with respect to the shoe, an anterior convex portion positioned to support the anterior, transverse metatarsal arch, and a raised area for supporting the plantar protuberance of the fifth metatarsal, said device permitting that portion of the foot anterior of the cuneiform bones to rest upon the insole of the shoe.
Claim 8
Independent Claim
144 words
A device for insertion in a shoe and adapted to cooperate therewith in supporting a foot comprising an elongated insert of non-uniform thickness adapted to be disposed of an inner sole of the shoe, said insert having posterior, concave area with side walls adapted to receive and support the os calcis and to restrain the same from lateral or medial movement with respect to the shoe, a raised, medial area intermediate the ends of the shoe and adapted to support the medial longitudinal arch of the foot to restrain eversion of the foot with respect to the shoe, an anterior convex portion positioned to support the anterior, transverse metatarsal arch, and a raised area for supporting the plantar protuberance of the fifth metatarsal, said device permitting that portion of the foot anterior of the cuneiform bones to rest upon the insole of the shoe.
Claim 9
Dependent Claim
34 words
The device of claim 6 wherein the device has a bottom surface, the bottom surface having a protuberance which in walking supports the distal end of the fifth metatarsus and the phalanges carried thereby.
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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) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |