← Back to Patent Explorer
US3810318A Expired / Lapsed US ⏱️ 0.0 years remaining

Shoe, especially for aiding children in learning to walk

Assignee: SALAMANDER AG
•
Filing: 1972-08-03
•
Granted: 1974-05-14
•
Expires: 1992-08-03
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A shoe, especially for aiding children in learning to walk, which includes an inner sole having an extension extending upwardly and forming the heel section, which latter together with said inner sole forms a coherent, preferably single piece structural element.

Inventors

  • 👤 R Epstein

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 15:42
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/14; A43B7/1405; A43B7/1415; A43B7/142; A43B13/00; A43B13/14; A43B13/22; A43B13/24; A43B13/26; A43B13/38; A43B13/41; A43B23/00; A43B23/08; A43B23/16; A43B23/17; A43B7/143; A43B7/144; A43B7/1455; A43B7/1463; A43B11/00; A43B11/02; A43B3/00; A43B3/30; A43B7/16

Claims Analysis

Total Claims: 45
Claim 1
Independent Claim 79 words
A shoe, especially for aiding children to walk, which includes: an inner sole and an extension thereof, which latter is arranged adjacent to said inner sole and extends upwardly while forming the heel section, said inner sole and said heel section forming a coherent curved structural element of said shoe, said coherent curved structural element at the area where the inner sole merges with the heel section being at least at one lateral edge provided with a V-shaped fold.
Claim 2
Dependent Claim 79 words
A shoe, especially for aiding children to walk, which includes: an inner sole and an extension thereof, which latter is arranged adjacent to said inner sole and extends upwardly while forming the heel section, said inner sole and said heel section forming a coherent curved structural element of said shoe, said coherent curved structural element at the area where the inner sole merges with the heel section being at least at one lateral edge provided with a V-shaped fold.
Claim 3
Dependent Claim 17 words
A shoe according to claim 1, in which the edges of said fold directly abut each other.
Claim 4
Dependent Claim 49 words
A shoe according to claim 1, in which said shoe has an outer sole with centering openings, and in which a member inside of said outer sole is provided with anti-slip protrusions extending through said outer sole, at least some of said anti-slip protrusions extending through said centering openings.
Claim 5
Dependent Claim 25 words
A shoe according to claim 1, which includes a reinforcement arranged at least within the transition area between the inner sole and the heel section.
Claim 6
Dependent Claim 16 words
A shoe according to claim 4, in which said reinforcement is located below said transition area.
Claim 7
Dependent Claim 31 words
A shoe according to claim 4, in which said reinforcemeNt is formed by a heel-shaped member cupping said heel section and said inner sole in the manner of a bucket seat.
Claim 8
Dependent Claim 20 words
A shoe according to claim 4, in which said reinforcement is formed by an injection molded part of synthetic material.
Claim 9
Dependent Claim 15 words
A shoe according to claim 7, in which said injection molded part is of polyvinylchloride.
Claim 10
Dependent Claim 21 words
A shoe according to claim 4, in which said reinforcement is injection molded onto said inner sole and said heel section.
Claim 11
Dependent Claim 26 words
A shoe according to claim 4, in which said reinforcement has its thickest area within the transition range between said inner sole and said heel section.
Claim 12
Dependent Claim 16 words
A shoe according to claim 10, in which said reinforcement becomes thinner towards its upper portion.
Claim 13
Dependent Claim 16 words
A shoe according to claim 10, in which said reinforcement becomes thinner toward its side edges.
Claim 14
Dependent Claim 23 words
A shoe according to claim 10, in which said reinforcement extends approximately to the central portion of the length of the inner sole.
Claim 15
Dependent Claim 46 words
A shoe according to claim 10, in which the shoe has a shoe upper, and in which the contour of the outer surface of said reinforcement within the region of the heel section substantially corresponds to the contour of the inner surface of the shoe upper.
Claim 16
Dependent Claim 16 words
A shoe according to claim 14, in which said shoe upper directly engages said outer surface.
Claim 17
Dependent Claim 46 words
A shoe according to claim 10, in which the shoe has a shoe upper with lateral folded portions, and in which the bottom surface of said reinforcement within the region of said inner sole is provided with means for direct connection with said laterally folded portions.
Claim 18
Dependent Claim 41 words
A shoe according to claim 10, in which the shoe has an outer sole, and in which the bottom surface of said reinforcement within the region of said inner sole is provided with means for direct connection to said outer sole.
Claim 19
Dependent Claim 52 words
A shoe according to claim 17, in which the shoe has a shoe upper with lateral folded portions, and in which the bottom surface of said reinforcement within the region of said inner sole is in its marginal region offset by a distance substantially equaling the thickness of said lateral folded portions.
Claim 20
Dependent Claim 31 words
A shoe according to claim 17, in which said outer sole is provided with passage means, and in which said inner sole has anti-slip protrusion means extending through said passage means.
Claim 21
Dependent Claim 33 words
A shoe according to claim 10, in which said shoe has an outer sole provided with centering openings, and in which the inner sole is provided with centering protrusions engaging said centering openings.
Claim 22
Dependent Claim 42 words
A shoe according to claim 4, which includes an outer sole, connecting means arranged on said inner sole, and receiving means associated with said outer sole for receiving said connecting means to establish a firm connection between said inner and outer soles.
Claim 23
Dependent Claim 31 words
A shoe according to claim 4, which includes an outer sole and in which said reinforcement forms a substantially sharp edge located vertically above the roll-off edge of said outer sole.
Claim 24
Dependent Claim 34 words
A shoe according to claim 4, which includes a cushion of foam material arranged on said reinforcement within that portion of said heel section which is intended for receiving the heel of the foot.
Claim 25
Dependent Claim 16 words
A shoe according to claim 23, in which said cushion is injection molded onto said reinforcement.
Claim 26
Dependent Claim 104 words
A shoe, especially for aiding children to walk, which includes: an inner sole and an extension thereof, which latter is arranged adjacent to said inner sole and extends upwardly while forming the heel section, said inner sole and said heel section forming a coherent curved structural element of said shoe, a reinforcement arranged at least within the transition area between the inner sole and the heel section, said reinforcement having thickest area thereof within the transition range between said inner sole and said heel section, said reinforcement extending approximately to the end of the ball section of a corresponding foot inserted into the shoe.
Claim 27
Dependent Claim 104 words
A shoe, especially for aiding children to walk, which includes: an inner sole and an extension thereof, which latter is arranged adjacent to said inner sole and extends upwardly while forming the heel section, said inner sole and said heel section forming a coherent curved structural element of said shoe, a reinforcement arranged at least within the transition area between the inner sole and the heel section, said reinforcement having thickest area thereof within the transition range between said inner sole and said heel section, said reinforcement extending approximately to the end of the ball section of a corresponding foot inserted into the shoe.
Claim 28
Dependent Claim 22 words
A shoe according to claim 25, in which said reinforcemenT extends only over a portion of the height of said heel section.
Claim 29
Dependent Claim 35 words
A shoe according to claim 25, in which the shoe has a shoe upper and in which said reinforcement ends below the upper edge of the shoe upper in the region of the heel section.
Claim 30
Dependent Claim 154 words
A shoe, especially for aiding children to walk, which includes: an inner sole and an extension thereof, which latter is arranged adjacent to said inner sole and extends upwardly while forming the heel section, said inner sole and said heel section forming a coherent curved structural element of said shoe, a reinforcement arranged at least within the transition area between the inner sole and the heel section, said reinforcement having thickest area thereof within the transition range between said inner sole and said heel section, the shoe having a shoe upper with lateral folded portions, and the bottom surface of said reinforcement within the region of said inner sole being in its marginal region offset by a distance substantially equalling the thickness of said lateral folded portions, said bottom surface being offset by an elevated section of said reinforcement, said elevated section being arranged in spaced relationship to the edge of said inner sole.
Claim 31
Dependent Claim 154 words
A shoe, especially for aiding children to walk, which includes: an inner sole and an extension thereof, which latter is arranged adjacent to said inner sole and extends upwardly while forming the heel section, said inner sole and said heel section forming a coherent curved structural element of said shoe, a reinforcement arranged at least within the transition area between the inner sole and the heel section, said reinforcement having thickest area thereof within the transition range between said inner sole and said heel section, the shoe having a shoe upper with lateral folded portions, and the bottom surface of said reinforcement within the region of said inner sole being in its marginal region offset by a distance substantially equalling the thickness of said lateral folded portions, said bottom surface being offset by an elevated section of said reinforcement, said elevated section being arranged in spaced relationship to the edge of said inner sole.
Claim 32
Dependent Claim 29 words
A shoe according to claim 28, in which a portion of said reinforcement extends approximately to the front end of the shoe and is formed by said elevated section.
Claim 33
Dependent Claim 18 words
A shoe according to claim 29, in which said portion of said reinforcement is a flat surface portion.
Claim 34
Dependent Claim 36 words
A shoe according to claim 28, in which said outer sole is provided with passage means, and in which the elevated section of said reinforcement is provided with anti-slip protrusion means extending through said passage means.
Claim 35
Dependent Claim 154 words
A shoe, especially for aiding children to walk, which includes: an inner sole and an extension thereof, which latter is arranged adjacent to said inner sole and extends upwardly while forming the heel section, said inner sole and said heel section forming a coherent curved structural element of said shoe, a reinforcement arranged at least within the transition area between the inner sole and the heel section, said reinforcement having thickest area thereof within the transition range between said inner sole and said heel section, the shoe having an outer sole and the bottom surface of said reinforcement within the region of said inner sole being provided with means for direct connection to said outer sole, said outer sole being provided with passage means, and the elevated section of said reinforcement being provided with anti-slip protrusion means extending through said passage means, said anti-slip protrusion means forming a single integral piece with said reinforcement.
Claim 36
Dependent Claim 154 words
A shoe, especially for aiding children to walk, which includes: an inner sole and an extension thereof, which latter is arranged adjacent to said inner sole and extends upwardly while forming the heel section, said inner sole and said heel section forming a coherent curved structural element of said shoe, a reinforcement arranged at least within the transition area between the inner sole and the heel section, said reinforcement having thickest area thereof within the transition range between said inner sole and said heel section, the shoe having an outer sole and the bottom surface of said reinforcement within the region of said inner sole being provided with means for direct connection to said outer sole, said outer sole being provided with passage means, and the elevated section of said reinforcement being provided with anti-slip protrusion means extending through said passage means, said anti-slip protrusion means forming a single integral piece with said reinforcement.
Claim 37
Dependent Claim 36 words
A shoe according to claim 28, in which said shoe has an outer sole provided with centering openings, and in which the elevated section of said reinforcement is provided with centering protrusions engaging said centering openings.
Claim 38
Dependent Claim 125 words
A shoe, especially for aiding children to walk, which includes: an inner sole and an extension thereof, which latter is arranged adjacent to said inner sole and extends upwardly while forming the heel section, said inner sole and said heel section forming a coherent curved structural element of said shoe, a reinforcement arranged at least within the transition area between the inner sole and the heel section, the reinforcement within the region of said inner sole having an elevated flat surface section and connecting means provided on said elevated section, an outer sole arranged below said inner sole and said heel section, and means associated with said outer sole for receiving said connecting means to establish a firm connection between said inner and outer soles.
Claim 39
Dependent Claim 125 words
A shoe, especially for aiding children to walk, which includes: an inner sole and an extension thereof, which latter is arranged adjacent to said inner sole and extends upwardly while forming the heel section, said inner sole and said heel section forming a coherent curved structural element of said shoe, a reinforcement arranged at least within the transition area between the inner sole and the heel section, the reinforcement within the region of said inner sole having an elevated flat surface section and connecting means provided on said elevated section, an outer sole arranged below said inner sole and said heel section, and means associated with said outer sole for receiving said connecting means to establish a firm connection between said inner and outer soles.
Claim 40
Dependent Claim 24 words
A shoe according to claim 34, in which said shoe includes a shoe upper provided with means for receiving some of said connecting means.
Claim 41
Dependent Claim 149 words
A shoe, especially for aiding children to walk, which includes: an inner sole and an extension thereof which latter is arranged adjacent to saId inner sole and extends upwardly while forming the heel section, said inner sole and said heel section forming a coherent curved structural element of said shoe, a reinforcement arranged at least within the transition area between the inner sole and the heel section, said reinforcement having thickest area thereof within the transition range between said inner sole and said heel section, the shoe having an outer sole and the bottom surface of said reinforcement within the region of said inner sole being provided with means for direct connection to said outer sole, said outer sole being provided with passage means, and the elevated section of said reinforcement being provided with anti-slip protrusion means extending through said passage means, said anti-slip protrusion means including undercut protrusions.
Claim 42
Dependent Claim 149 words
A shoe, especially for aiding children to walk, which includes: an inner sole and an extension thereof which latter is arranged adjacent to saId inner sole and extends upwardly while forming the heel section, said inner sole and said heel section forming a coherent curved structural element of said shoe, a reinforcement arranged at least within the transition area between the inner sole and the heel section, said reinforcement having thickest area thereof within the transition range between said inner sole and said heel section, the shoe having an outer sole and the bottom surface of said reinforcement within the region of said inner sole being provided with means for direct connection to said outer sole, said outer sole being provided with passage means, and the elevated section of said reinforcement being provided with anti-slip protrusion means extending through said passage means, said anti-slip protrusion means including undercut protrusions.
Claim 43
Dependent Claim 122 words
A shoe, especially for aiding children to walk, which includes: an inner sole and an extension thereof, which latter is arranged adjacent to said inner sole and extends upwardly while forming the heel section, said inner sole and said heel section forming a coherent curved structural element of said shoe, a shoe upper and strap means connected to the upper portion of said heel section and forming an extension thereof while protruding beyond the upper edge of said shoe upper, a first connecting element arranged on said extension and also including a second connecting element arranged on the outside of said shoe at a lower level than the upper edge of said upper for detachably engaging and holding said first connecting element.
Claim 44
Dependent Claim 122 words
A shoe, especially for aiding children to walk, which includes: an inner sole and an extension thereof, which latter is arranged adjacent to said inner sole and extends upwardly while forming the heel section, said inner sole and said heel section forming a coherent curved structural element of said shoe, a shoe upper and strap means connected to the upper portion of said heel section and forming an extension thereof while protruding beyond the upper edge of said shoe upper, a first connecting element arranged on said extension and also including a second connecting element arranged on the outside of said shoe at a lower level than the upper edge of said upper for detachably engaging and holding said first connecting element.
Claim 45
Dependent Claim 22 words
A shoe according to claim 37, in which said strap means includes a centering hole having said first connecting element connected thereto.

References Cited (Backward Citations)

FR1033277A Cited
US2730818A Cited
GB846581A Cited
US3333353A Cited
US3500561A Cited
US3685175A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-05-13 1977-11-12 1978-05-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-05-13 1981-11-12 1982-05-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-05-13 1985-11-12 1986-05-14 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag