Patent US4058942A successfully refreshed from Google Patents.
US4058942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible non-skid strip with fluorescent surface portions
Assignee: Individual
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Filing: 1976-06-01
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Granted: 1977-11-22
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Expires: 1996-06-01
Abstract
Abstract A flexible non-skid strip is constituted by a main body portion extending along the length of the strip and adapted to be secured to the tread of a stair, a forward edge anchoring portion coextending with the main body portion parallel to and spaced from the main body and adapted to be secured to the riser of the stair, an arcuate cross-section connection portion integrally connected to the upper surfaces of the main body portion and the anchoring portion and projecting above the upper surfaces of the main body portion and the anchoring portion and so as to integrally connect the main body portion and anchoring portion together and adapted to bend about the stair edge of the stair so as to cover the stair edge, and at least one fluorescent material layer being embedded in the upper surface of at least one of the portions.
Inventors
- 👤 Hiromitsu Naka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:06
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/02; E04F11/104; E04F11/16; E04F11/163; E04F11/166; B; B29; B29C; B29C48/00; B29C48/001; B29C48/0011; B29C48/0013; B29C48/0014; B29C48/0019; B29C48/002; B29C48/0021; B29C48/0022; B29C48/03; B29C48/07; B29C48/08; B29C48/12; B29C48/15; B29C48/154; B29C48/16; B29C48/18; B29C48/21; E04F2011/1046; E04F2011/1048; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/22; Y10T428/24; Y10T428/2419; Y10T428/24215; Y10T428/24479; Y10T428/24521; Y10T428/24537; Y10T428/2457
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
A flexible non-skid strip comprising: a main body portion extending along the length of said strip and adapted to be secured to the tread of a stair; a forward edge anchoring portion coextending with said main body portion parallel to and spaced from said main body portion and adapted to be secured to the riser of said stair; an arcuate cross-section connection portion integrally connected to the upper surfaces of said main body portion and said anchoring portion, projecting above the upper surfaces of said main body portion and said anchoring portion, having a thickness smaller than that of the main body and anchoring portions connected thereby, and adapted to bend about the stair edge of said stair so as to cover the stair edge; and a fluorescent material layer being integrally embedded in said main body portion so as to expose the upper surface of said layer to the upper surface of said main body portion.
Claim 2
Dependent Claim
157 words
A flexible non-skid strip comprising: a main body portion extending along the length of said strip and adapted to be secured to the tread of a stair; a forward edge anchoring portion coextending with said main body portion parallel to and spaced from said main body portion and adapted to be secured to the riser of said stair; an arcuate cross-section connection portion integrally connected to the upper surfaces of said main body portion and said anchoring portion, projecting above the upper surfaces of said main body portion and said anchoring portion, having a thickness smaller than that of the main body and anchoring portions connected thereby, and adapted to bend about the stair edge of said stair so as to cover the stair edge; and a fluorescent material layer being integrally embedded in said main body portion so as to expose the upper surface of said layer to the upper surface of said main body portion.
Claim 3
Dependent Claim
77 words
A flexible non-skid strip as claimed in claim 1, in which said fluorescent material layer comprises an elongated channel element integrally embedded in said main body portion so as to open on the upper surface of said main body portion and extend in the longitudinal direction of said main body portion; a fluorescent material element positioned within and secured to said channel element; and a transparent covering element positioned over and secured to said fluorescent material element.
Claim 4
Dependent Claim
43 words
A flexible non-skid strip as claimed in claim 1, in which said fluorescent material layer comprises a flexible synthetic resin layer having a white pigment therein, and a covering layer of a transparent flexible synthetic resin having an ultraviolet ray absorption agent therein.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-21 | 1981-05-23 | 1981-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-21 | 1985-05-23 | 1985-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-21 | 1989-05-23 | 1989-11-22 | $7700.00 | Window Closed / Lapsed |