Circular knit shoe upper

This invention describes a shoe upper that is knitted as a hollow tube on a circular knitting machine. It's designed to have different sections with distinct characteristics, like varying stretch or thickness. The specific version described in the claims includes additional lining yarns that are woven through the knit structure and secured at regular intervals.

Why it matters: Only one year has passed since filing, so the specialized knitting technique for integrating lining yarns likely remains the core challenge. No significant technological shifts in this area are apparent in such a short timeframe.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedSpecialized knitting machinery, yarn integration

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