# US 2021/0274884 A1 · Method for interchangeable shoe sole > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0274884 A1 - Document ID: US20210274884A1 - Status: Published application - Kind: A1 - Application number: 17/211,787 - Filed: 2021-03-24 - Published: 2021-09-09 - Earliest claimed: 2018-10-21 - Inventors: Marvin Constant; Aaron Ruffin - Web page: https://patentgrep.com/patent/US20210274884A1 ## CPC - A43B 13/36: Easily-exchangeable soles (protecting-soles A43C13/12) - A43B 13/04: Plastics, rubber or vulcanised fibre - A43B 13/141: {with a part of the sole being flexible, e.g. permitting articulation or torsion} - A43B 13/16: Pieced soles (with several layers of different material A43B13/12) - A43B 1/0027: {made at least partially from a material having special colours} - A43B 1/0045: {made at least partially of deodorant means} - A43B 3/0031: {provided with a pocket, e.g. for keys or a card} - A43B 3/246: {characterised by the sole} - A43B 3/36: with light sources - A43B 7/146: {provided with acupressure points or means for foot massage} - A43B: CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR ## Abstract A method for interlocking a shoe sole can provide the ability for the shoe sole to be attached or removed. For example, a shoe wearer may want the ability to change his or her shoe soles for aesthetic purposes. The shoe sole can also comprise additional functionality for the shoe wearer. For example, a method of also using the shoe sole as storage is discussed herein. ## Claims ### Claim 1 A method, comprising: stretching an elastic member of an upper sole of a shoe from a first position to a second position, wherein the upper sole of the shoe comprises a first lip; attaching a lower sole of the shoe to the upper sole of the shoe by inserting a second lip of the lower sole into a recess formed by the first lip of the upper sole; and releasing the upper sole of the shoe to facilitate an interlocking of the upper sole to the lower sole as a result of the elastic member returning to the first position. ### Claim 2 (depends on 1) The method of claim 1, wherein the first lip comprises a sealing material to prevent moisture from entering between the upper sole and the lower sole. ### Claim 3 (depends on 3) The method of claim 3, the second lip comprises a sealing material to prevent moisture from entering between the upper sole and the lower sole. ### Claim 4 (depends on 3) The method of claim 3, wherein the stretching comprises stretching the elastic member to facilitate the attaching of the lower sole to the upper sole. ### Claim 5 (depends on 4) The method of claim 4, further comprising: stretching the elastic member to facilitate removing the lower sole of the shoe. ### Claim 6 (depends on 5) The method of claim 5, further comprising: inserting a cushion into a compartment of the lower sole of the shoe to provide support for a user of the shoe prior to attaching the lower sole of the shoe to the upper sole of the shoe. ### Claim 7 (depends on 6) The method of claim 6, further comprising: storing an object in the lower sole of the shoe prior to attaching the lower sole of the shoe to the upper sole of the shoe. ### Claim 8 (depends on 5) The method of claim 5, further comprising: inserting a hot pack into a compartment of the lower sole of the shoe to generate heat for a user of the shoe. ### Claim 9 (depends on 5) The method of claim 5, further comprising: inserting a cold pack into a compartment of the lower sole of the shoe to generate cold for a user of the shoe. ### Claim 10 (depends on 8) The method of claim 8, further comprising: inserting an odor eater into a compartment of the lower sole to reduce a shoe odor. ### Claim 11 A method, comprising: stretching an elastic member of an upper sole of a shoe from a first position to a second position, wherein the upper sole of the shoe comprises a retractable locking mechanism; attaching a lower sole of the shoe to the upper sole of the shoe by retracting the retractable locking mechanism allowing the lower sole to be inserted into a recess of the upper sole; and releasing the retractable locking mechanism to facilitate an interlocking of the upper sole to the lower sole as a result of the elastic member returning to the first position. ### Claim 12 (depends on 11) The method of claim 11, wherein the retractable locking mechanism comprises a sealing material to prevent moisture from entering between the upper sole and the lower sole. ### Claim 13 (depends on 13) The method of claim 13, the upper sole comprises a sealing material to prevent moisture from entering between the upper sole and the lower sole. ### Claim 14 (depends on 13) The method of claim 13, wherein the stretching comprises stretching the elastic member to facilitate the attaching of the lower sole to the upper sole. ### Claim 15 (depends on 14) The method of claim 14, further comprising: stretching the elastic member to facilitate removing the lower sole of the shoe. ### Claim 16 (depends on 14) The method of claim 14, further comprising: inserting a cushion into a compartment of the lower sole of the shoe to provide support for a user of the shoe prior to attaching the lower sole of the shoe to the upper sole of the shoe. ### Claim 17 (depends on 16) The method of claim 16, further comprising: storing a key in the lower sole of the shoe prior to attaching the lower sole of the shoe to the upper sole of the shoe. ### Claim 18 (depends on 17) The method of claim 17, further comprising: inserting a hot pack into a compartment of the lower sole of the shoe to generate heat for a user of the shoe prior to attaching the lower sole of the shoe to the upper sole of the shoe. ### Claim 19 (depends on 18) The method of claim 18, further comprising: inserting a cold pack into a compartment of the lower sole of the shoe to generate cold for a user of the shoe prior to attaching the lower sole of the shoe to the upper sole of the shoe. ### Claim 20 (depends on 19) The method of claim 19, further comprising: inserting an odor eater into a compartment of the lower sole to reduce a shoe odor prior to attaching the lower sole of the shoe to the upper sole of the shoe.