Patent US4858339A successfully refreshed from Google Patents.
US4858339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite rubber sheet material and sports shoe employing the same
Assignee: Nippon Rubber Co Ltd
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Filing: 1988-01-07
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Granted: 1989-08-22
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Expires: 2008-01-07
Abstract
Abstract A composite rubber sheet material and a sport shoe including a composite rubber sheet material includes a sponge rubber sheet and a mesh cloth having a percentage of voids in the range of 15 to 75%. The mesh cloth is inset in one side surface of the sponge rubber sheet to a depth ranging from 5 to 75% of the thickness of the mesh cloth for enhancing the stability, durability, bendability and flexibility of the composite rubber sheet material.
Inventors
- 👤 Hideki Hayafuchi
- 👤 Yoshiharu Moronaga
- 👤 Kiyotaka Nakano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:40
CPC Classifications
A; A43; A43B; A43B1/00; A43B1/02; A43B1/04; A43B1/025; A43B1/028; A43B1/10; A43B23/00; A43B23/02; A43B23/0205; A43B23/0225
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
94 words
A composite rubber sheet material comprising: a sponge rubber sheet; and a mesh cloth having a percentage of voids in the range of 15 to 75%; said mesh cloth being inset in one side surface of the sponge rubber sheet to a depth ranging from 5 to 75% of the thickness of the mesh cloth to limit the tension modulus and creep characteristics of the mesh cloth and the sponge rubber sheet and for absorbing tensile pressure and impact pressure for enhancing the stability, durability, bendability and flexibility of the composite rubber sheet material.
Claim 2
Dependent Claim
94 words
A composite rubber sheet material comprising: a sponge rubber sheet; and a mesh cloth having a percentage of voids in the range of 15 to 75%; said mesh cloth being inset in one side surface of the sponge rubber sheet to a depth ranging from 5 to 75% of the thickness of the mesh cloth to limit the tension modulus and creep characteristics of the mesh cloth and the sponge rubber sheet and for absorbing tensile pressure and impact pressure for enhancing the stability, durability, bendability and flexibility of the composite rubber sheet material.
Claim 3
Dependent Claim
25 words
A composite rubber sheet material according to claim 1, wherein said mesh cloth is a knitted mesh fabric such as tulle made of natural fibers.
Claim 4
Dependent Claim
25 words
A composite rubber sheet material according to claim 1, wherein said mesh cloth is a knitted mesh fabric such as tulle made of synthetic fibers.
Claim 5
Dependent Claim
25 words
A composite rubber sheet material according to claim 1, wherein said mesh cloth is a knitted mesh fabric such as marquisette made of natural fibers.
Claim 6
Dependent Claim
25 words
A composite rubber sheet material according to claim 1, wherein said mesh cloth is a knitted mesh fabric such as marquisette made of synthetic fibers.
Claim 7
Dependent Claim
26 words
A composite rubber sheet material according to claim 1, wherein said mesh cloth is a knitted mesh fabric such as knitted lace made of natural fibers.
Claim 8
Dependent Claim
26 words
A composite rubber sheet material according to claim 1, wherein said mesh cloth is a knitted mesh fabric such as knitted lace made of synthetic fibers.
Claim 9
Dependent Claim
33 words
A composite rubber sheet material according to claim 1, wherein said voids of said mesh cloth are formed of through holes or meshes having a circular, polygonal, triangular, rectangular, pentagonal or hexagonal shape.
Claim 10
Dependent Claim
23 words
A composite rubber sheet material according to claim 1, wherein said mesh cloth is inset in and bonded to said sponge rubber sheet.
Claim 11
Dependent Claim
19 words
A composite rubber sheet material according to claim 1, wherein said sponge rubber sheet is made of natural rubber.
Claim 12
Dependent Claim
20 words
A composite rubber sheet material according to claim 1, wherein said sponge rubber sheet is made of synthetic rubber material.
Claim 13
Dependent Claim
25 words
A composite rubber sheet material according to claim 1, wherein said sponge rubber sheet has a hardness of 40° to 75° according to SRIS-0101 standards.
Claim 14
Dependent Claim
25 words
A composite rubber sheet material according to claim 1, wherein another mesh cloth is adhered to the reverse side surface of the sponge rubber sheet.
Claim 15
Dependent Claim
118 words
A sport shoe having an upper portion and a sole portion wherein a composite rubber sheet material overlapping a heel portion of said upper portion comprises: a sponge rubber sheet having a hardness of 40 to 75 according to the SRIS-0101 standards; and a mesh cloth having a percentage of voids ranging from 15 to 75%; said mesh cloth being inset in said rubber sheet to a depth ranging from 5 to 75% of the thickness of the cloth to limit the tension modulus and creep characteristics of the mesh cloth and the sponge rubber sheet and for absorbing tensile pressure and impact pressure for enhancing the stability, durability, bendability and flexibility of the composite rubber sheet material.
Claim 16
Dependent Claim
118 words
A sport shoe having an upper portion and a sole portion wherein a composite rubber sheet material overlapping a heel portion of said upper portion comprises: a sponge rubber sheet having a hardness of 40 to 75 according to the SRIS-0101 standards; and a mesh cloth having a percentage of voids ranging from 15 to 75%; said mesh cloth being inset in said rubber sheet to a depth ranging from 5 to 75% of the thickness of the cloth to limit the tension modulus and creep characteristics of the mesh cloth and the sponge rubber sheet and for absorbing tensile pressure and impact pressure for enhancing the stability, durability, bendability and flexibility of the composite rubber sheet material.
Claim 17
Dependent Claim
23 words
A sport shoe according to claim 14, wherein said mesh cloth is a knitted mesh fabric such as tulle made of natural fibers.
Claim 18
Dependent Claim
23 words
A sport shoe according to claim 14, wherein said mesh cloth is a knitted mesh fabric such as tulle made of synthetic fibers.
Claim 19
Dependent Claim
23 words
A sport shoe according to claim 14, wherein said mesh cloth is a knitted mesh fabric such as marquisette made of natural fibers.
Claim 20
Dependent Claim
23 words
A sport shoe according to claim 14, wherein said mesh cloth is a knitted mesh fabric such as marquisette made of synthetic fibers.
Claim 21
Dependent Claim
24 words
A sport shoe according to claim 14, wherein said mesh cloth is a knitted mesh fabric such as knitted lace made of natural fibers.
Claim 22
Dependent Claim
24 words
A sport shoe according to claim 14, wherein said mesh cloth is a knitted mesh fabric such as knitted lace made of synthetic fibers.
Claim 23
Dependent Claim
31 words
A sport shoe according to claim 14, wherein said voids of said mesh cloth are formed of through holes or meshes having a circular, polygonal, triangular, rectangular, pentagonal or hexagonal shape.
Claim 24
Dependent Claim
21 words
A sport shoe according to claim 14, wherein said mesh cloth is inset in and bonded to said sponge rubber sheet.
Claim 25
Dependent Claim
17 words
A sport shoe according to claim 14, wherein said sponge rubber sheet is made of natural rubber.
Claim 26
Dependent Claim
18 words
A sport shoe according to claim 14, wherein said sponge rubber sheet is made of synthetic rubber material.
Claim 27
Dependent Claim
23 words
A sport shoe according to claim 14, wherein another mesh cloth is adhered to the reverse side surface of the sponge rubber sheet.
Claim 28
Dependent Claim
24 words
A sport shoe according to claim 14, wherein said rubber sheet material is further coated on an outer side surface with a heel reinforcement.
Claim 29
Dependent Claim
27 words
A sport shoe according to claim 14, wherein said rubber sheet material is attached to overlap an inner side heel portion of the uppers of said shoe.
Claim 30
Dependent Claim
27 words
A sport shoe according to claim 14, wherein said rubber sheet material is attached to overlap an outer side heel portion of the uppers of said shoe.
Claim 31
Dependent Claim
30 words
A sport shoe according to claim 14, wherein said rubber sheet material is attached to overlap both an inner and outer side heel portion of the uppers of said shoe.
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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) | 1992-08-21 | 1993-02-20 | 1993-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-21 | 1997-02-20 | 1997-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-21 | 2001-02-20 | 2001-08-22 | $7700.00 | Window Closed / Lapsed |