Shoelace having sections of different diameters and densities
US5946779A · kind A · utility
10Cited by
6References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1998 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Jul 10, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/3726
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An improved shoelace having two tying sections with an elongated stringing section disposed therebetween. Each tying section has a larger diameter and lower density than the elongated stringing section so as to permit the stringing section to smoothly run through a plurality of string through holes of a shoe with less friction against the rims of the through holes in use, resulting in the advancement of durability of a shoelace in one aspect and the facility of tying of a shoelace into a butterfly knot in another aspect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.