Patent US4601885A successfully refreshed from Google Patents.
Patent US3683519A successfully refreshed from Google Patents.
US3683519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-slip foot device
Assignee: Individual
•
Filing: 1969-12-31
•
Granted: 1972-08-15
•
Expires: 1989-12-31
Abstract
Abstract A device for supporting the foot on a surface, such as a bed, wherein the device has a layer of frictionable material for underlying the foot to cause a frictional force to be developed between the layer and the surface to inhibit movement of the foot in one direction as the leg is in a relazed, flexed condition. A number of embodiments of the device are disclosed.
Inventors
- 👤 Adelene Creamer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:30
CPC Classifications
A; A43; A43B; A43B3/00; A43B3/10; A43B3/108; A43B13/00; A43B13/14; A43B13/22; A43B13/223; A43B13/226
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
120 words
A device for holding the foot against movement over a surface, said device comprising an open backed body including a layer of frictionable material adapted to be disposed between the foot and a surface and to cause a frictional force to be developed between the layer and the surface sufficient to hold the layer and thereby the foot against any substantial movement relative to the surface when the leg is in a substantially relaxed, flexed condition and when at least a portion of the foot is supported by the layer on the surface, said layer having a front margin and a rear margin, the distance between the front and rear margins being substantially less than the length of the foot.
Claim 2
Independent Claim
120 words
A device for holding the foot against movement over a surface, said device comprising an open backed body including a layer of frictionable material adapted to be disposed between the foot and a surface and to cause a frictional force to be developed between the layer and the surface sufficient to hold the layer and thereby the foot against any substantial movement relative to the surface when the leg is in a substantially relaxed, flexed condition and when at least a portion of the foot is supported by the layer on the surface, said layer having a front margin and a rear margin, the distance between the front and rear margins being substantially less than the length of the foot.
Claim 3
Dependent Claim
37 words
A device as set forth in claim 1, wherein is provided a pair of straps secured to and extending upwardly from each side of the layer, said straps being convergent as the upper extremities thereof are approached.
Claim 4
Dependent Claim
82 words
A device as set forth in claim 1, wherein is included a pair of spaced sides secured to and extending upwardly from said layer, each side having a free rear margin, a first strap means for encircling the upper part of the foot when the heel is between the sides and second strap means coupled to said layer and said first strap means for insertion between a pair of toes when the first strap means encircles said upper part of the foot.
Claim 5
Dependent Claim
70 words
A device as set forth in claim 1, wherein said body includes a sock-like member secured to the layer and extending upwardly therefrom, said member being tubular to receive and encircle the portion of the foot only in front of the ankle and beneath the heel to permit the layer to be carried thereon beneath the heel and a strap on the member for holding the member on the foot.
Claim 6
Dependent Claim
34 words
A device as set forth in claim 1, wherein is provided an irregular, foot-engaging surface on the upPer part of the layer, said surface defining a means for gripping the bottom of the foot.
Claim 7
Dependent Claim
24 words
A device as set forth in claim 1, wherein said layer comprises a sheet of said material, said sheet having an upper, foot-engaging surface.
Claim 8
Independent Claim
112 words
A device for holding the foot against movement over a surface comprising: a layer of frictionable material; means having an open back and coupled with said layer for releasably holding the latter on the foot to thereby permit the layer to support the foot on the surface and to cause a frictional force to be developed between the layer and the surface sufficient to hold the foot against any substantial movement relative to the surface when the leg is in a substantially relaxed, flexed condition, said layer having a front margin and a rear margin, the distance between the front and rear margins being substantially less than the length of the foot.
Claim 9
Independent Claim
112 words
A device for holding the foot against movement over a surface comprising: a layer of frictionable material; means having an open back and coupled with said layer for releasably holding the latter on the foot to thereby permit the layer to support the foot on the surface and to cause a frictional force to be developed between the layer and the surface sufficient to hold the foot against any substantial movement relative to the surface when the leg is in a substantially relaxed, flexed condition, said layer having a front margin and a rear margin, the distance between the front and rear margins being substantially less than the length of the foot.
References Cited (Backward Citations)
US1291958A
Cited
US2179124A
Cited
US2185762A
Cited
US2926435A
Cited
US3290802A
Cited
US3381178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |