# US 2021/0274883 A1 · Interchangeable shoe

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2021/0274883 A1
- Document ID: US20210274883A1
- Status: Published application
- Kind: A1
- Application number: 16/807,700
- Filed: 2020-03-03
- Published: 2021-09-09
- Earliest claimed: 2020-03-03
- Inventors: Cindy Fogarty; Nate Finlay; Jennie Drew Platt
- Web page: https://patentgrep.com/patent/US20210274883A1

## CPC

- A43B 3/242: {characterised by the upper}
- A43B 13/36: Easily-exchangeable soles (protecting-soles A43C13/12)
- A43B 3/24: Collapsible or convertible
- A43B 3/244: {characterised by the attachment between upper and sole}
- A43B 23/222: {characterised by the attachment to the sole}
- A43B: CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR

## Abstract

An interchangeable shoe. The interchangeable shoe includes a base, where the base includes a footbed, and an upper. The interchangeable shoe also includes an attachment, where the attachment releasably attaches the upper to the base, The attachment includes a groove in the footbed and a rail attached to the upper, where the rail is configured to be inserted into or removed from the groove.

## Claims

### Claim 1

An interchangeable shoe, the interchangeable shoe comprising:
a base, wherein the base includes a footbed;
an upper; and
an attachment, wherein the attachment releasably attaches the upper to the base, the attachment including:
a groove in the footbed;
a rail attached to the upper, wherein the rail is configured to be inserted into or removed from the groove.

### Claim 2 (depends on 1)

The interchangeable shoe of claim 1, wherein the rail includes one or more flex cuts.

### Claim 3 (depends on 1)

The interchangeable shoe of claim 1, wherein the base includes a flat.

### Claim 4 (depends on 1)

The interchangeable shoe of claim 1, wherein the base includes a heel.

### Claim 5 (depends on 1)

The interchangeable shoe of claim 1, wherein the upper is configured to completely cover the foot of the user.

### Claim 6 (depends on 1)

The interchangeable shoe of claim 1, wherein the upper is configured to cover only a portion of the user's foot.

### Claim 7 (depends on 1)

The interchangeable shoe of claim 1, wherein the groove is:
parallel in straight sections; and
non-parallel in non-straight sections.

### Claim 8 (depends on 1)

The interchangeable shoe of claim 1, wherein the rail is “P” shaped.

### Claim 9 (depends on 1)

The interchangeable shoe of claim 1, wherein the rail is “L” shaped.

### Claim 10 (depends on 1)

The interchangeable shoe of claim 1, wherein groove includes a detent.

### Claim 11 (depends on 10)

The interchangeable shoe of claim 10, wherein rail includes a snap, wherein the snap is configured to mate with the detent in the groove.

### Claim 12 (depends on 1)

The interchangeable shoe of claim 1, wherein the groove includes one or more chamfered edges.

### Claim 13

An interchangeable shoe, the interchangeable shoe comprising:
a base, wherein the base includes a footbed;
an upper; and
an attachment, wherein the attachment releasably attaches the upper to the base, the attachment including:
a groove in the footbed, wherein the groove includes:
chamfered edges; and
varying width in different sections of the groove;
a detent on one end of the groove;
a rail attached to the upper, wherein the rail:
is configured to be inserted into or removed from the groove; and includes:
a body;
a bar on the body, wherein the bar is sized and shaped to match the size and shape of the groove;
one or more flex cuts in the bar, wherein the one or more flex cuts are configured to allow the bar to flex;
a snap, wherein the snap is configured to mate with the detent in the groove;
a cap over the snap, wherein the cap is configured to cover the detent and snap when mated;
a webbing, wherein the webbing attaches the body to the upper.

### Claim 14 (depends on 13)

The interchangeable shoe of claim 13, wherein the groove includes a sloped end adjacent the detent.

### Claim 15 (depends on 13)

The interchangeable shoe of claim 13, wherein the webbing is fused to the body of the rail.

### Claim 16 (depends on 13)

The interchangeable shoe of claim 13, wherein the rail is injection molded onto the webbing.

### Claim 17

An interchangeable shoe, the interchangeable shoe comprising:
a base, wherein the base includes a footbed;
an upper; and
an attachment, wherein the attachment releasably attaches the upper to the base, the attachment including:
a groove in the footbed, wherein the groove includes:
chamfered edges; and
varying width in different sections of the groove;
a detent on one end of the groove;
a sloped area adjacent the detent, wherein the height of the groove changes in the sloped area; and
a curved on the end of the groove opposite the detent;
a rail attached to the upper, wherein the rail:
is configured to be inserted into or removed from the groove; and includes:
a body;
a bar on the body, wherein the bar is sized and shaped to match the size and shape of the groove;
one or more flex cuts in the bar, wherein the one or more flex cuts are configured to allow the bar to flex;
a snap, wherein the snap is configured to mate with the detent in the groove;
a cap over the snap, wherein the cap is configured to cover the detent and snap when mated; and
a webbing, wherein the webbing attaches the body to the upper.

### Claim 18 (depends on 17)

The interchangeable shoe of claim 17, further comprising:
an anti-tear feature.

### Claim 19 (depends on 17)

The interchangeable shoe of claim 17, wherein the webbing includes: nylon.

### Claim 20 (depends on 17)

The interchangeable shoe of claim 17, wherein the webbing includes: polyester.