US6219939B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Athletic shoe midsole design and construction
Assignee: Mizuno Corp
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Filing: 1997-08-13
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Granted: 2001-04-24
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Expires: 2017-08-13
Abstract
Abstract A midsole assembly for an athletic shoe comprising a midsole and a corrugated sheet. The midsole is formed of soft elastic material. The corrugated sheet is disposed in at least a heel portion of the midsole. Either or both amplitude and wavelength of wave configuration of said corrugated sheet are made different either or both between a front end portion and back end portion, and between an medial portion and lateral portion of said heel portion.
Inventors
- 👤 Kenjiro Kita
- 👤 Yasunori Kaneko
- 👤 Takaya Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:31
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/02; A43B13/12; A43B13/125; A43B13/14; A43B13/18; A43B13/181; A43B13/183; A43B3/00; A43B3/0036; A43B3/0057
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
108 words
A midsole assembly for an athletic shoe comprising: a midsole formed of soft elastic material; and a corrugated sheet made of plastic material, said sheet being disposed in a heel region of said midsole, said corrugated sheet extending across the full width of said heel region, said heel region having a substantially constant thickness; and amplitude of wave configuration of said corrugated sheet being made different between a medial and a lateral portion of said heel region, said corrugated sheet thereby providing a higher compression hardness or lower cushioning properties in said medial portion of greater amplitude than said lateral portion of smaller amplitude of said heel portion.
Claim 2
Dependent Claim
108 words
A midsole assembly for an athletic shoe comprising: a midsole formed of soft elastic material; and a corrugated sheet made of plastic material, said sheet being disposed in a heel region of said midsole, said corrugated sheet extending across the full width of said heel region, said heel region having a substantially constant thickness; and amplitude of wave configuration of said corrugated sheet being made different between a medial and a lateral portion of said heel region, said corrugated sheet thereby providing a higher compression hardness or lower cushioning properties in said medial portion of greater amplitude than said lateral portion of smaller amplitude of said heel portion.
Claim 3
Dependent Claim
16 words
The midsole assembly of claim 1 , wherein said corrugated sheet is comprised of fiber-reinforced plastic.
Claim 4
Dependent Claim
18 words
The midsole assembly of claim 2 , wherein fibers of said fiber-reinforced plastic are aligned in one direction.
Claim 5
Dependent Claim
28 words
The midsole assembly of claim 3 , wherein fibers of said fiber-reinforced plastic are oriented to the direction coinciding with the direction of ridges of said wave configuration.
Claim 6
Dependent Claim
28 words
The midsole assembly of claim 3 , wherein fibers of said fiber-reinforced plastic are oriented within ±30° with relation to the direction of ridges of said wave configuration.
Claim 7
Dependent Claim
36 words
The midsole assembly of claim 2 , wherein fibers of said fiber-reinforced plastic are woven by filing and warp, the modulus of elasticity of said filling being larger than or equal to that of said warp.
Claim 8
Dependent Claim
25 words
The midsole assembly of claim 6 , wherein said filling is oriented to the direction coinciding with the direction of ridges of said wave configuration.
Claim 9
Dependent Claim
25 words
The midsole assembly of claim 6 , wherein said filling is oriented within ±30° with relation to the direction of ridges of said wave configuration.
Claim 10
Dependent Claim
108 words
A midsole assembly for an athletic shoe comprising: a midsole formed of soft elastic material; and a corrugated sheet made of plastic material, said sheet being disposed in a heel region of said midsole, said corrugated sheet extending across the full width of said heel region, said heel region having a substantially constant thickness; and amplitude of wave configuration of said corrugated sheet being made different between a medial and a lateral portion of said heel region, said corrugated sheet thereby providing a higher compression hardness or lower cushioning properties in said lateral portion of greater amplitude than said medial portion of smaller amplitude of said heel portion.
Claim 11
Dependent Claim
108 words
A midsole assembly for an athletic shoe comprising: a midsole formed of soft elastic material; and a corrugated sheet made of plastic material, said sheet being disposed in a heel region of said midsole, said corrugated sheet extending across the full width of said heel region, said heel region having a substantially constant thickness; and amplitude of wave configuration of said corrugated sheet being made different between a medial and a lateral portion of said heel region, said corrugated sheet thereby providing a higher compression hardness or lower cushioning properties in said lateral portion of greater amplitude than said medial portion of smaller amplitude of said heel portion.
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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) | 2004-04-23 | 2004-10-23 | 2005-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-04-23 | 2008-10-23 | 2009-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-04-23 | 2012-10-23 | 2013-04-24 | $7700.00 | Window Closed / Lapsed |