Patent US4658441A successfully refreshed from Google Patents.
US4658441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One piece thumb support and protector
Assignee: Individual
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Filing: 1985-12-13
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Granted: 1987-04-21
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Expires: 2005-12-13
Abstract
Abstract Disclosed is a thumb support for the human hand comprising a support piece having a cradle portion installable around the thenar eminence and the metacarpophalangeal joint of the thumb and a tab portion wrappable over the thumb/index web space. When the cradle portion and tab portion are properly installed, they create a frustoconically shaped cone portion which acts to enclose the metacarpophalangeal joint of the thumb and isolate the index finger and the thumb and support the metacarpophalangeal joint of the thumb.
Inventors
- 👤 Steven A. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:21
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/05; A41D13/08; A41D13/081; A41D13/087; Y; Y10; Y10S; Y10S2/00; Y10S2/908; Y10S2/91
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
159 words
A thumb support for the human hand, comprising: a support piece defining a plane and comprising: a cradle portion installable at least partially around the thenar eminence and the metacarpophalangeal joint of the thumb; a tab portion wrappable over the thumb/index web space and when so wrapped acting to at least partially enclose the cradle portion, the tab portion being of sufficient rigidity to substantially prevent the thumb from moving in a plane defined by the thumb and an index finger of the human hand; a means for anchoring the cradle portion of the support piece to the hand; a means for securing the tab portion in its position as wrapped over the thumb/index web space; and, the cradle portion when so installed and the tab portion so wrapped comprise a frusto-conically shaped cone portion, which cone portion acts to enclose at least the metacarpophalangeal joint or the thumb and acts to isolate the index finger and the thumb.
Claim 2
Dependent Claim
159 words
A thumb support for the human hand, comprising: a support piece defining a plane and comprising: a cradle portion installable at least partially around the thenar eminence and the metacarpophalangeal joint of the thumb; a tab portion wrappable over the thumb/index web space and when so wrapped acting to at least partially enclose the cradle portion, the tab portion being of sufficient rigidity to substantially prevent the thumb from moving in a plane defined by the thumb and an index finger of the human hand; a means for anchoring the cradle portion of the support piece to the hand; a means for securing the tab portion in its position as wrapped over the thumb/index web space; and, the cradle portion when so installed and the tab portion so wrapped comprise a frusto-conically shaped cone portion, which cone portion acts to enclose at least the metacarpophalangeal joint or the thumb and acts to isolate the index finger and the thumb.
Claim 3
Dependent Claim
27 words
The thumb support in accordance with claim 1 in which the periphery of the plane defined by the support piece is substantially as shown in FIG. 2.
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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) | 1990-04-20 | 1990-10-20 | 1991-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-20 | 1994-10-20 | 1995-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-20 | 1998-10-20 | 1999-04-21 | $7700.00 | Window Closed / Lapsed |