Interlocking footwear insole replacement system
US6092311A · kind A · utility
Inventor
Key dates
| Filing date | Feb 5, 1999 |
| Grant date | Jul 25, 2000 |
| Priority date | — |
| Expiry date | Feb 5, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B17/18
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Footwear is provided with a series of removable insoles, each being adapted to be detachably installed to the outsole. The insoles have a wearing surface which conforms to the shape of the user's foot, the wearing surface of each insole being configured to accommodate a progressively larger foot size, increasing the useful life of the footwear and optionally eliminating the sockliner. In the preferred embodiment the footwear comprises decorative lights of as many different colors as there are insoles in the series, and each insole is provided with an actuator positioned to activate a specific color of light. Each insole may be colored or color coded to match the color of the lights activated thereby, and can be identified by the color code applied to either the lights or the insoles. The insoles may alternatively be integrated into a single insole with tear-away layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.