Process for making a waterproof shoe
US6836916B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2003 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Jun 24, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B9/08
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
In a process for making a waterproof shoe, an upper and a waterproof lining unit with open top and bottom ends are prepared. The lining unit is placed within the upper, and the top ends of the upper and the lining unit are interconnected. A cover member is then attached to the bottom end of the upper to close the bottom end of the upper. After an outsole is attached to the bottom end of the upper, the lining unit is pulled out from the upper through the top end of the upper so that the bottom end of the lining unit moves away from the upper. The outsole is then sewn to the bottom end of the upper, thus forming a reinforcing sewing line that interconnects the outsole and the upper. Thereafter, the lining unit is re-inserted into the upper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.