US3722113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article of footwear
Assignee: Individual
•
Filing: 1971-05-06
•
Granted: 1973-03-27
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Expires: 1991-05-06
Abstract
Abstract An article of footwear has uppers which may in form of straps, and a sole of yieldable elastomeric material which is provided at least on its upper and, according to some embodiments, on its lower surface with projections which extend substantially normal to the general plane of the respective surface. The projections may be of different length.
Inventors
- 👤 K Birkenstock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:45
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/14; A43B7/1405; A43B7/141; A43B13/00; A43B13/14; A43B13/18; A43B13/181; A43B13/184; A43B7/1415; A43B7/142; A43B7/1455; A43B7/146
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
114 words
An article of footwear, comprising upper means; sole means of yieldable elastomeric material provided on said upper means and including a sole member having a normally upper surface adapted to face the underside of a human foot and a normally lower surface facing away from the human foot; and a plurality of first substantially cylindrical projections of different heights distributed over said upper surface and projecting upwardly therefrom so as to extend at least substantially normal to the underside of a foot on which said article is worn, and a plurality of second substantially cylindrical projections provided on said lower surface and extending downwardly therefrom, all of said projections being yieldable in all directions.
Claim 2
Dependent Claim
114 words
An article of footwear, comprising upper means; sole means of yieldable elastomeric material provided on said upper means and including a sole member having a normally upper surface adapted to face the underside of a human foot and a normally lower surface facing away from the human foot; and a plurality of first substantially cylindrical projections of different heights distributed over said upper surface and projecting upwardly therefrom so as to extend at least substantially normal to the underside of a foot on which said article is worn, and a plurality of second substantially cylindrical projections provided on said lower surface and extending downwardly therefrom, all of said projections being yieldable in all directions.
Claim 3
Dependent Claim
16 words
An article as defined in claim 1, wherein said elastomeric material is natural or synthetic rubber.
Claim 4
Dependent Claim
16 words
An article as defined in claim 1, wherein said elastomeric material is a synthetic plastic material.
Claim 5
Dependent Claim
61 words
An article as defined in claim 1, said sole member having a marginal outer circumferential region and an inner region surrounded by said outer region; and wherein said first projections in said inner region extend at least substantially normal to said upper surface and the first projections in said outer region are at least slightly inwardly inclined towards said inner region.
Claim 6
Dependent Claim
23 words
An article as defined in claim 1, said sole member having a longitudinal and a transverse direction, and being flexible in both directions.
Claim 7
Dependent Claim
28 words
An article as defined in claim 1, said second projections on said additional lower surface extending downwardly from the latter in at least substantial parallelism with each other.
Claim 8
Dependent Claim
33 words
An article as defined in claim 1; and further comprising a circumferential edge portion provided on said sole member and projecting transversely to the respective general planes of said upper and lower surfaces.
Claim 9
Dependent Claim
17 words
An article as defined in claim 7, wherein said edge portion is at least substantially circumferentially complete.
Claim 10
Dependent Claim
15 words
An article as defined in claim 1, wherein said material is A high-molecular foamed material.
Claim 11
Dependent Claim
13 words
An article as defined in claim 9, wherein said material is foamed polyurethane.
Claim 12
Dependent Claim
14 words
An article as defined in claim 1, wherein said material is a cork-latex mixture.
Claim 13
Dependent Claim
42 words
An article as defined in claim 1, said upper means comprising straps of one piece with said sole means and having free end portions, and connecting means for connecting said free end portions when said straps have been placed about a foot.
Claim 14
Dependent Claim
18 words
An article as defined in claim 12, said straps each having two at least substantially identical major sides.
Claim 15
Dependent Claim
27 words
An article as defined in claim 12, wherein said sole means has a marginal circumferential portion, and wherein said straps are of one piece with the same.
Claim 16
Dependent Claim
122 words
An article of footwear, comprising upper means; sole means of yieldable elastomeric material provided on said upper means and including a sole member having a normally upper surface adapted to face the underside of a human foot and a normally lower surface facing away from the human foot; and a plurality of first projections of different heights distributed over said upper surface and projecting upwardly therefrom so as to extend at least substantially normal to the underside of a foot on which said article is worn, and a plurality of second projections provided on said lower surface and extending downwardly therefrom in at least substantial parallelism with each other, each of said second projections being coaxial with one of said first projections.
Claim 17
Dependent Claim
122 words
An article of footwear, comprising upper means; sole means of yieldable elastomeric material provided on said upper means and including a sole member having a normally upper surface adapted to face the underside of a human foot and a normally lower surface facing away from the human foot; and a plurality of first projections of different heights distributed over said upper surface and projecting upwardly therefrom so as to extend at least substantially normal to the underside of a foot on which said article is worn, and a plurality of second projections provided on said lower surface and extending downwardly therefrom in at least substantial parallelism with each other, each of said second projections being coaxial with one of said first projections.
Claim 18
Dependent Claim
28 words
An article as defined in claim 15, wherein each of said second projections has a length corresponding to that of the first projection with which it is coaxial.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |