Article of footwear
US11503878B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2020 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Feb 24, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B23/0205
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An improved article of footwear includes a sole structure and an upper. The upper is coupled to the sole structure and is configured to receive at least a portion of a human foot. The upper further includes a toebox, a medial quarter, a lateral quarter, a heel cup. The upper also includes a three dimensional auxetic structure at least partially formed within the medial quarter, lateral quarter, and heel cup of the upper. The three dimensional auxetic structure defines a primary expansion direction, a secondary expansion direction, and a tertiary expansion direction. The secondary expansion direction is transverse to the primary expansion direction. The tertiary expansion direction is normal to the plane defined by the primary expansion direction and the secondary expansion direction. Furthermore, the upper of the article of footwear is constructed via a thermoforming process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.