US4318232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heel structure for shoes
Assignee: Individual
•
Filing: 1980-03-03
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Granted: 1982-03-09
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Expires: 2000-03-03
Abstract
Abstract The heel of a shoe is formed with replaceable inserts or knobs that may be formed of material that is the same as or different from the material of the heel and the manner of mounting is such that a user may readily replace the inserts to prevent or limit wear of the shoe heel.
Inventors
- 👤 Yook J. Ching
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:49
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/14; A43B13/22; A43B13/24; A43C; A43C15/00; A43C15/16; A43C15/161
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
76 words
An improved heel structure for a shoe comprising at least one insert with a shank adapted to fit into a heel depression and to replaceably extend therefrom, each of said depressions having a central protuberance in the bottom thereof and each of said inserts having a central longitudinal apperture in the inner end of the shank thereof for tightly fitting on a protuberance in a heel depression to removably lock an insert in a heel depression.
Claim 2
Dependent Claim
76 words
An improved heel structure for a shoe comprising at least one insert with a shank adapted to fit into a heel depression and to replaceably extend therefrom, each of said depressions having a central protuberance in the bottom thereof and each of said inserts having a central longitudinal apperture in the inner end of the shank thereof for tightly fitting on a protuberance in a heel depression to removably lock an insert in a heel depression.
Claim 3
Dependent Claim
46 words
The structure of claim 1 further defined by a metal disc locked in the bottom of each heel indentation and including said protuberance with a threaded exterior and said inserts being formed of an indentable material whereby the end apperture thereof tightly fits said threaded protuberance.
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) | 1985-03-08 | 1985-09-07 | 1986-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-08 | 1989-09-07 | 1990-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-08 | 1993-09-07 | 1994-03-09 | $7700.00 | Window Closed / Lapsed |