US4686781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollowshoe footwear
Assignee: Individual
•
Filing: 1985-05-06
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Granted: 1987-08-18
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Expires: 2005-05-06
Abstract
Abstract A weighted hollowshoe footwear comprises rubber top, bottom, and sides. An inner chamber is formed by said rubber top, bottom, and sides. A central rubber spine having an inverted V-shape tip is provided in said inner chamber to allow integral weighting material to migrate within said inner chamber.
Inventors
- 👤 Joseph R. Bury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:11
CPC Classifications
A; A43; A43B; A43B3/00; A43B3/12; A43B3/128; A43B3/0031; A63; A63B; A63B21/00; A63B21/06; A63B21/0601; A63B21/0603; A63B21/065; A63B21/40; A63B21/4001; A63B21/4011; A63B21/4015
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A weighted hollowshoe footwear comprising (a) rubber top, bottom, and sides, (b) an inner chamber formed by said rubber top, bottom, and sides; (c) a central rubber spline having an inverted V-shape tip at one end for allowing integral weighting material to migrate within said inner chamber, (d) said central rubber spline being made integral with said hollowshoe footwear, (e) a closure opening located at the front of said sides, and (f) a means for closing said closure opening.
Claim 2
Dependent Claim
79 words
A weighted hollowshoe footwear comprising (a) rubber top, bottom, and sides, (b) an inner chamber formed by said rubber top, bottom, and sides; (c) a central rubber spline having an inverted V-shape tip at one end for allowing integral weighting material to migrate within said inner chamber, (d) said central rubber spline being made integral with said hollowshoe footwear, (e) a closure opening located at the front of said sides, and (f) a means for closing said closure opening.
References Cited (Backward Citations)
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FR910292A
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US2507991A
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JPS5243535A
Cited
GB2100969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-17 | 1991-02-16 | 1991-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-17 | 1995-02-16 | 1995-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-17 | 1999-02-16 | 1999-08-18 | $7700.00 | Window Closed / Lapsed |