Patent US4727661A successfully refreshed from Google Patents.
US4727661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Footwear with removable insole
Assignee: Individual
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Filing: 1986-12-01
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Granted: 1988-03-01
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Expires: 2006-12-01
Abstract
Abstract The invention relates to an article of footwear having a removable insole. The insole has nubs and magnetic metal parts on its upper surface for massaging the foot reflex zones. Snap fasteners fasten the insole to the sole. Each snap fastener has an upper part mounted on the lower surface of the insole opposite the magnetic metal part, and a lower part mounted on the sole.
Inventors
- 👤 Margrit Kuhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:43
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/14; A43B7/1405; A43B7/1455; A43B7/146; A43B1/00; A43B1/0054; A43B17/00; A43B17/04; A43B17/18
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
117 words
In an article of footwear of the type comprising a sole, and an insole with an upper and lower surface, said upper surface having a plurality of nubs from about 1 to 12 mm in length for massaging at a foot reflex zone, said upper surface also having a plurality of magnetic metal parts mounted thereon for massaging at four main points of a foot reflex zone, the improvement comprising: a plurality of snap fasteners for removably fastening said nubbed insole to said sole, each snap fastener comprising an upper part mounted on the lower surface of the insole directly below a respective one of said magnetic metal parts, and a lower part mounted on the sole.
Claim 2
Dependent Claim
117 words
In an article of footwear of the type comprising a sole, and an insole with an upper and lower surface, said upper surface having a plurality of nubs from about 1 to 12 mm in length for massaging at a foot reflex zone, said upper surface also having a plurality of magnetic metal parts mounted thereon for massaging at four main points of a foot reflex zone, the improvement comprising: a plurality of snap fasteners for removably fastening said nubbed insole to said sole, each snap fastener comprising an upper part mounted on the lower surface of the insole directly below a respective one of said magnetic metal parts, and a lower part mounted on the sole.
Claim 3
Dependent Claim
32 words
The footwear of claim 1, wherein at least one snap fastener is made of metal, said upper and lower parts of said snap fastener being mounted respectively to the insole and sole.
Claim 4
Dependent Claim
33 words
The footwear of claim 1, wherein at least one snap fastener is made of synthetic material, said upper and lower parts of said snap fastener being welded respectively to the insole and sole.
Claim 5
Dependent Claim
33 words
The footwear of claim 1, wherein at least one snap fastener is made of synthetic material, said upper and lower parts of said snap fastener being mounted respectively to the insole and sole.
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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) | 1991-03-01 | 1991-08-31 | 1992-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-01 | 1995-08-31 | 1996-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-01 | 1999-08-31 | 2000-03-01 | $7700.00 | Window Closed / Lapsed |