US 12,342,905 B2
Expandable shoe capable to grow with a wearer/user's feet for more than three sizes
Satyajit Mittal, Maharashtra (IN)
Assigned to SANOSYZO PRIVATE LIMITED, Pune Maharashtra (IN)
Appl. No. 17/925,676
Filed by Satyajit Mittal, Maharashtra (IN)
PCT Filed May 18, 2021, PCT No. PCT/IB2021/054250
§ 371(c)(1), (2) Date Nov. 16, 2022,
PCT Pub. No. WO2021/234557, PCT Pub. Date Nov. 25, 2021.
Claims priority of application No. 202021020899 (IN), filed on May 18, 2020.
Prior Publication US 2023/0276893 A1, Sep. 7, 2023
Int. Cl. A43B 3/26 (2006.01); A43B 1/04 (2022.01); A43B 3/00 (2022.01); A43B 3/30 (2006.01); A43B 9/04 (2006.01); A43B 13/14 (2006.01)
CPC A43B 3/26 (2013.01) [A43B 1/04 (2013.01); A43B 3/0073 (2013.01); A43B 3/30 (2013.01); A43B 9/04 (2013.01); A43B 13/141 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An expandable shoe (01) capable of growing with a wearer/user's feet comprising: an upper (18) together with an expanding sole (16) having an upper surface and a bottom surface which are capable of automatically adjusting and adapting comfortably to a wearer's feet resulting in increased comfort, usability and postponed obsolescence; wherein the sole (16) has a plurality of flaps (14) extending upwards from the bottom surface of the sole (16) around the circumference of the sole (16); wherein the shoe (01) further comprises: adjustment mechanisms including a plurality of cuts positioned at different locations in the sole (16) and having a pre-defined distance between the flaps (14); wherein said cuts effectively vary length and width of the shoe (01) and vary an interior size of the shoe (01) to provide a comfortable fit to the wearer/user; wherein said cuts comprise inverted ‘Y’ shaped cuts (110) are provided with rounded vertices (110A) and the rounded vertices (110A) are circular-shaped to avoid tearing and snagging of the flaps (14); and wherein said cuts optionally further comprise one or more further cuts selected from the group consisting of a ‘V’ shaped cut (27), a straight cut (210), a star cut (310), a wave cut (410), a nib cut (510), at least two micro cuts 610A, at least one slit (610) cut, a flexible V cut (16B) and a combination thereof and each of said optional further cuts is provided with or without rounded vertices (110A).