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US4489510A Expired / Lapsed US ⏱️ 0.0 years remaining

Friction soled shoe slipper

Assignee: Individual
•
Filing: 1982-09-03
•
Granted: 1984-12-25
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Expires: 2002-09-03
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Abstract

Abstract A shoe slipper cover has an inexpensive top plastic shell and a bottom friction pad structure which includes a plurality of relatively thin friction fibrous pads mounted in telescoped and overlapping relationship. A bottom plastic sole member is secured abutting the upper surface of the pads to define a protective inner sole. The edges of the shell and inner sole are sewn to each other and to the pads which project upwardly therebetween. The multiple pads in overlapping relationship form an essentially continuous sole structure with the overlapping portion creating ridges within the sole structure. The sole provides an appropriate support of the shoe on the wet floor while minimizing cost.

Inventors

  • 👤 Robert M. Williams

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 16:49
CPC Classifications
A; A43; A43B; A43B3/00; A43B3/16; A43B13/00; A43B13/14

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 91 words
A foot cover for releasable attachment to a foot for providing firm footing on a slippery surface, comprising a multiple pad sole including a plurality of pads secured in an overlapping relationship and defining a bottom sole adapted to substantially underlie the sole of a foot, a shell means adapted to be releasably secured over the foot, and means interconnecting of the pads and the shell to define an integrated structure for releasable attachment in a covering relationship over the foot with said multiple pad sole defining the supporting bottom sole.
Claim 2
Dependent Claim 91 words
A foot cover for releasable attachment to a foot for providing firm footing on a slippery surface, comprising a multiple pad sole including a plurality of pads secured in an overlapping relationship and defining a bottom sole adapted to substantially underlie the sole of a foot, a shell means adapted to be releasably secured over the foot, and means interconnecting of the pads and the shell to define an integrated structure for releasable attachment in a covering relationship over the foot with said multiple pad sole defining the supporting bottom sole.
Claim 3
Dependent Claim 32 words
The cover of claim 1 wherein each of said pads is an integrated continuous pad formed of a fibrous material of a substantial thickness, and each pad extends completely across the sole.
Claim 4
Dependent Claim 34 words
The cover of claim 2 wherein said shell includes a bottom attachment lip extending in a reverse fold into the shell, said pads abutting said lip, and means securing the pads to said lip.
Claim 5
Dependent Claim 14 words
The cover of claim 3 wherein said securement means is a sewn thread means.
Claim 6
Dependent Claim 16 words
The cover of claim 1 wherein the shell is formed of a flexible, non-elastic sheet material.
Claim 7
Dependent Claim 34 words
The cover of claim 1 having an inner sole secured to the top surface of the multiple pad sole and with the multiple pad sole extending between the shell means and the inner sole.
Claim 8
Dependent Claim 190 words
A nonslip shoe covering for attachment over a shoe and establishing firm footing on a wet slippery floor, comprising a top shell formed of a nonelastic, flexible sheet material, said sheet material being impervious to water, said shell being in the form of an upper shoe member including a toe and heel portion connected by side portions, the lower edge of the shell being turned inwardly and upwardly, a nonslip sole unit formed of a fibrous material and having a thickness substantially greater than the thickness of said shell and having the edge of the sole unit turned upwardly with the lower edge of said shell, an inner sole liner of a non-elastic flexible material overlying the inner face of the sole unit and having the edge of the liner turned upwardly with the sole unit, means interconnecting of the sole unit and liner with the upwardly turned edge to secure the shell and the sole unit to the inner sole liner, wherein said sole consists of four pad members of a substantially equal longitudinal length, said pad members being telescoped in overlapped longitudinal relation in excess of one-half inch.
Claim 9
Dependent Claim 190 words
A nonslip shoe covering for attachment over a shoe and establishing firm footing on a wet slippery floor, comprising a top shell formed of a nonelastic, flexible sheet material, said sheet material being impervious to water, said shell being in the form of an upper shoe member including a toe and heel portion connected by side portions, the lower edge of the shell being turned inwardly and upwardly, a nonslip sole unit formed of a fibrous material and having a thickness substantially greater than the thickness of said shell and having the edge of the sole unit turned upwardly with the lower edge of said shell, an inner sole liner of a non-elastic flexible material overlying the inner face of the sole unit and having the edge of the liner turned upwardly with the sole unit, means interconnecting of the sole unit and liner with the upwardly turned edge to secure the shell and the sole unit to the inner sole liner, wherein said sole consists of four pad members of a substantially equal longitudinal length, said pad members being telescoped in overlapped longitudinal relation in excess of one-half inch.
Claim 10
Dependent Claim 24 words
The shoe cover of claim 7 where each of said pad members is formed with an unstressed thickness equally essentially to one quarter inch.

References Cited (Backward Citations)

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US992221A Cited
US1210521A Cited
FR522099A Cited
US2319879A Cited
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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) 1987-12-25 1988-06-25 1988-12-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-12-25 1992-06-25 1992-12-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-12-25 1996-06-25 1996-12-25 $7700.00 Window Closed / Lapsed

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