US4928404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heel cushion
Assignee: BAUERFEIND & Co A CORP OF FED REP OF GERMANY GmbH
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Filing: 1989-01-04
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Granted: 1990-05-29
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Expires: 2009-01-04
Abstract
Abstract A heel cushion composed of silicone rubber having a region which can be centrally or eccentrically located directly below the heel spur and composed of a softer silicone rubber than the balance of the heel cushion so that in heel regions subjected to higher pressure, that higher pressure will be absorbed by the softer material and the pressure throughout the back bottom part of the foot will be more uniform.
Inventors
- 👤 Rainer Scheuermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:04
CPC Classifications
A; A43; A43B; A43B17/00; A43B17/16
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
63 words
A heel cushion for incorporation in footwear below the heel of a user, comprising a heel bed composed of a relatively hard silicone rubber, and means inserted to form a soft region of silicone rubber located below the heel of the wearer and adapted to absorb excessive pressure, said bed being continuous below said region and said region being embedded in said bed.
Claim 2
Dependent Claim
63 words
A heel cushion for incorporation in footwear below the heel of a user, comprising a heel bed composed of a relatively hard silicone rubber, and means inserted to form a soft region of silicone rubber located below the heel of the wearer and adapted to absorb excessive pressure, said bed being continuous below said region and said region being embedded in said bed.
Claim 3
Dependent Claim
16 words
The heel cushion defined in claim 1 wherein said region is located centrally of said bed.
Claim 4
Dependent Claim
16 words
The heel cushion defined in claim 1 wherein said region is located eccentrically of said bed.
Claim 5
Dependent Claim
12 words
The heel cushion defined in claim 1 wherein said region is circular.
Claim 6
Dependent Claim
29 words
The heel cushion defined in claim 1 further comprising an upstanding shell formed unitarily with said bed and extending around at least a rear portion of the perimeter thereof.
References Cited (Backward Citations)
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US2055072A
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US2863231A
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US3859740A
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US4747410A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-28 | 1993-11-27 | 1994-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-28 | 1997-11-27 | 1998-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-28 | 2001-11-27 | 2002-05-29 | $7700.00 | Window Closed / Lapsed |