US4635384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Footwear sole
Assignee: Individual
•
Filing: 1984-05-24
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Granted: 1987-01-13
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Expires: 2004-05-24
Abstract
Abstract A shoe sole comprising an upper sole having a banana configuration and a lower sole, said upper sole containing a forward air pocket and a rearward air pocket, said forward air pocket communicating with the rearward air pocket by a hollow corrugated section, said hollow corrugated section functioning between an expanded and contracted state depending on the pressure applied to said air pockets. Accordingly, the present invention provides an improved version of footwear which enables one's body weight when combined with the footwear to provide additional power for walking or running.
Inventors
- 👤 Myung H. Huh
- 👤 Je S. Jeon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:59
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/14; A43B13/18; A43B13/20
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
80 words
A shoe sole, comprising: an upper sole having an obtusely angled shape; and a lower sole, said upper sole containing a forward air pocket and a rearward air pocket, said forward air pocket communicating with said rearward air pocket by a hollow corrugated section, such that said hollow corrugated section expands or contracts depending on pressure applied to said air pockets, said lower sole having formed therein a cavity for receipt of said air pockets of said upper sole therein.
Claim 2
Dependent Claim
80 words
A shoe sole, comprising: an upper sole having an obtusely angled shape; and a lower sole, said upper sole containing a forward air pocket and a rearward air pocket, said forward air pocket communicating with said rearward air pocket by a hollow corrugated section, such that said hollow corrugated section expands or contracts depending on pressure applied to said air pockets, said lower sole having formed therein a cavity for receipt of said air pockets of said upper sole therein.
Claim 3
Dependent Claim
14 words
The shoe sole of claim 1 wherein the air pockets are filled with air.
Claim 4
Dependent Claim
18 words
The shoe sole of claim 2 wherein the air has a pressure of about 2 kg/cm 2 .
Claim 5
Dependent Claim
20 words
The shoe sole of claim 1 wherein the air pockets arefilled with a combination of air and a foam material.
Claim 6
Dependent Claim
13 words
The shoe sole of claim 4 wherein the foam material is a urethane.
Claim 7
Dependent Claim
32 words
The shoe sole of claim 1 wherein the rearward air pocket has a substantially U-shaped configuration with the two legs thereof communicating with the forward air pocket via said hollow corrugated section.
Claim 8
Dependent Claim
44 words
The shoe sole of claim 6 wherein the cavity of said lower sole comprises a groove portion for receiving said forward and rearward air pockets and a projecting portion for engagement between the legs of the rearward U-shaped air pockets of said upper sole.
Claim 9
Dependent Claim
90 words
A shoe sole, comprising: an upper sole having an obtusely angled shape; and a lower sole, said upper sole containing a forward air pocket and a rearward air pocket, said rearward air pocket having a substantially U-shaped configuration with the two legs thereof communicating with said forward air pocket through a hollow corrugated section, such that said hollow corrugated section expands or contracts depending on pressure applied to said air pockets, said lower sole having formed therein a cavity for receipt of said air pockets of said upper sole therein.
Claim 10
Dependent Claim
90 words
A shoe sole, comprising: an upper sole having an obtusely angled shape; and a lower sole, said upper sole containing a forward air pocket and a rearward air pocket, said rearward air pocket having a substantially U-shaped configuration with the two legs thereof communicating with said forward air pocket through a hollow corrugated section, such that said hollow corrugated section expands or contracts depending on pressure applied to said air pockets, said lower sole having formed therein a cavity for receipt of said air pockets of said upper sole therein.
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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) | 1990-01-12 | 1990-07-14 | 1991-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-12 | 1994-07-14 | 1995-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-12 | 1998-07-14 | 1999-01-13 | $7700.00 | Window Closed / Lapsed |