US3922801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid filled orthopedic apparatus
Assignee: Individual
•
Filing: 1973-07-16
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Granted: 1975-12-02
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Expires: 1993-07-16
Abstract
Abstract An apparatus and method of making it is provided whereby a liquid-filled shoe insole is produced. The insole comprises discreet internal liquid-filled ampules which are strategically placed between upper and lower laminae and sealed in place to provide separate support for various parts of the foot.
Inventors
- 👤 Patrick Thomas Zente
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:20
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/14; A43B13/18; A43B13/20
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
83 words
An apparatus for treating foot defects and for promoting foot comfort which comprises: flexible, liquid-filled ampules, at least one separate ampule being provided and positioned to support each of (a) the toes, (b) the metatarsal, (c) the arch, and (d) the heel; and a flexible upper lamina and a flexible lower lamina, the laminae containing the ampules, and the laminae being sealed at their periphery and around the perimeter of each of the ampules, thereby permanently positioning the ampules and forming the apparatus.
Claim 2
Independent Claim
83 words
An apparatus for treating foot defects and for promoting foot comfort which comprises: flexible, liquid-filled ampules, at least one separate ampule being provided and positioned to support each of (a) the toes, (b) the metatarsal, (c) the arch, and (d) the heel; and a flexible upper lamina and a flexible lower lamina, the laminae containing the ampules, and the laminae being sealed at their periphery and around the perimeter of each of the ampules, thereby permanently positioning the ampules and forming the apparatus.
Claim 3
Dependent Claim
12 words
The apparatus of claim 1 in which the liquid is mineral oil.
Claim 4
Dependent Claim
40 words
The apparatus of claim 1 in which (a) 2 ampules are provided for the toes, (b) 3 ampules are provided for the metatarsal, (c) 2 ampules are provided for the arch, and (d) 2 ampules are provided for the heel.
Claim 5
Dependent Claim
32 words
The apparatus of claim 3 in which one of the ampules provided for the heel is substantially toroidal in shape, the other being substantially cylindrical and positioned centrally inside said toroidal ampule.
Claim 6
Dependent Claim
21 words
The apparatus of claim 1 in which one ampule is provided for the heel, said ampule being substantially toroidal in shape.
Claim 7
Dependent Claim
14 words
The apparatus of claim 1 in which two ampules are provided for the metatarsal.
Claim 8
Dependent Claim
11 words
The apparatus in claim 1 in which the liquid is water.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |