Patent DE213247C successfully refreshed from Google Patents.
US4745693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shoe with detachable sole and heel
Assignee: Individual
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Filing: 1987-02-09
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Granted: 1988-05-24
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Expires: 2007-02-09
Abstract
Abstract A shoe having an upper portion and a sole-and-heel portion which portions are releasably joined together by a circumferential zipper connection means.
Inventors
- 👤 Randy N. Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:54
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/28; A43B13/36; A43B3/00; A43B3/24; A43C; A43C11/00; A43C11/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
257 words
In a shoe assembly including an upper shoe portion having an elongated lower edge portion and covering an upper portion of a foot of a wearer and a lower shoe portion having an elongated upper edge portion and covering a lower portion of a foot of a wearer wherein said shoe assembly includes curved toe and heel portions the improvement comprising a releasable connecting means selectively attaching said lower edge portion to said upper edge portion, said releasable connecting means including a first means attached to and along said lower edge portion and a second means attached to and along said upper edge portion, said releasable connecting means providing positive attachment between said lower and upper edge portions which resists detachment from forces generally perpendicular to said lower and upper edge portions, said lower shoe portion includes an arcuate semi-stiff heel support, means for permanently attaching said heel support to said lower shoe portion with said heel support being upstanding therefrom, said heel support shielding a heel of a wearer from contact with said releasable connecting means, and said lower shoe portion including an arcuate semi-stiff toe support means for permanently attaching said toe support to said lower shoe portion with said toe support being upstanding therefrom, said toe support shielding toes of a wearer from contact with said releasable connecting means, said heel and toe supports providing ready closure and inward support of said releasable connecting means about said toe and heel portions and providing retention of shape of said shoe assembly during repeated uses thereof.
Claim 2
Dependent Claim
257 words
In a shoe assembly including an upper shoe portion having an elongated lower edge portion and covering an upper portion of a foot of a wearer and a lower shoe portion having an elongated upper edge portion and covering a lower portion of a foot of a wearer wherein said shoe assembly includes curved toe and heel portions the improvement comprising a releasable connecting means selectively attaching said lower edge portion to said upper edge portion, said releasable connecting means including a first means attached to and along said lower edge portion and a second means attached to and along said upper edge portion, said releasable connecting means providing positive attachment between said lower and upper edge portions which resists detachment from forces generally perpendicular to said lower and upper edge portions, said lower shoe portion includes an arcuate semi-stiff heel support, means for permanently attaching said heel support to said lower shoe portion with said heel support being upstanding therefrom, said heel support shielding a heel of a wearer from contact with said releasable connecting means, and said lower shoe portion including an arcuate semi-stiff toe support means for permanently attaching said toe support to said lower shoe portion with said toe support being upstanding therefrom, said toe support shielding toes of a wearer from contact with said releasable connecting means, said heel and toe supports providing ready closure and inward support of said releasable connecting means about said toe and heel portions and providing retention of shape of said shoe assembly during repeated uses thereof.
Claim 3
Dependent Claim
33 words
The shoe assembly of claim 1 wherein said releasable connecting means is a zipper having slide means to open or close said zipper and means to selectively prevent said slide means from moving.
Claim 4
Dependent Claim
24 words
The shoe assembly of claim 1 wherein said upper portion is defined by a soft flexible material in the form of an athletic shoe.
Claim 5
Dependent Claim
16 words
The shoe assembly of claim 2 wherein said lower portion is defined by an elastomeric material.
Claim 6
Dependent Claim
31 words
The shoe assembly of claim 2 wherein said zipper includes a starting end portion and an ending portion located medially of the length of said shoe assembly adjacent its arch portion.
Claim 7
Dependent Claim
39 words
The shoe assembly of claim 5 wherein said zipper includes a pivotable pull tab, further comprising detachable means for selectively locking said zipper pull tab in its locked position to inhibit inadvertent movement thereof tending to unzip said zipper.
Claim 8
Dependent Claim
75 words
The shoe assembly of claim 2 wherein said zipper includes a pivotable pull tab, which additionally includes a keeper strap at right angles to said zipper and located medially of the length of said shoe on the side adjacent its arch, said keeper strap being attached to said lower shoe portion, and means on said upper shoe portion to releasably attach said strap thereto. thereby releasably holding said pull tab snugly against said shoe assembly.
Claim 9
Dependent Claim
25 words
The shoe of claim 7 wherein said keeper strap and means on said upper shoe portion includes a fastener embodying fabric hooks and fabric loops.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-24 | 1991-11-23 | 1992-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-24 | 1995-11-23 | 1996-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-24 | 1999-11-23 | 2000-05-24 | $7700.00 | Window Closed / Lapsed |