Shoe wear indicator
US6578291B2 · kind B2 · utility
93Cited by
11References
10Claims
0Family size
Inventors
Key dates
| Filing date | Jun 6, 2001 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Jun 6, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B17/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention provides a shoe having a built-in, electronic wear indicator device capable of signaling (a) extent of shoe sole wear, (b) loss of ability to cushion and absorb shock, and (c) a need to replace the shoe. The wear indicator device comprises (a) a sensor and microprocessor which can measure and report the use history of the shoe, (b) a wear indicator display which shows the consumer the current point in the shoe's life cycle and (c) a power source. The wear indicator device is installed between the midsole and outsole during the manufacturing process and is therefore, built-in and unobtrusive to the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.