Shoelace
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jan 1, 2019
Grant Date -
Dec 28, 2017
app pub date -
May 8, 2017
filing date -
Jun 7, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
An improved shoelace has an elastic inner core having a plurality of elastic members and a woven string covering the elastic inner layer. The woven string has a plurality of narrow sections and wide sections evenly disposed on two ends of the elastic inner core. Each narrow section wraps around the elastic inner core, each wide section is longer than each narrow section and separated from the elastic inner core. When the elastic inner core is not pulled, the wide sections overlap and fold onto the elastic inner core 10 and has a cone shape with at least three times thickness than the narrow section. When the elastic inner core is pulled, the wide sections are stretched straight.
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