Patent US3686809A successfully refreshed from Google Patents.
US3686809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced wood floor sections
Assignee: Individual
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Filing: 1970-01-30
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Granted: 1972-08-29
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Expires: 1990-01-30
Abstract
Abstract Decking for roofs and floors, and a method of manufacture thereof, in which a decking section comprises a plurality of boards of forcibly bent configuration secured side-by-side and retained in their bent configuration by metal strips which may be provided with integral punched-out projections.
Inventors
- 👤 Skuli Walter Lindal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:49
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/48; E04B1/49; E04C; E04C3/00; E04C3/02; E04C3/12; E04C3/18; E04F; E04F15/00; E04F15/02; E04F15/04; F; F16; F16B; F16B15/00; F16B15/0023; F16B15/003; F16B15/0046; E04F15/02044; E04F2015/0205; E04F2201/00; E04F2201/05; E04F2201/0511; F16B2015/0069
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
106 words
A decking section comprising a plurality of generally plane sided, longitudinally extending wood boards arranged in parallel side-by-side relationship; and a metal strip extending between each adjacent pair of boards in a plane parallel to the confronting longitudinal sides of said pair of boards; each said board being similarly pre-stressed by bending forces in a plane parallel to the plane of said metal strip; each said strip being secured to said confronting faces of the corresponding adjacent pair of boards, whereby each board is retained in its prestressed state and applies a tensile stress to said metal strip secured to a longitudinal side of that board.
Claim 2
Dependent Claim
106 words
A decking section comprising a plurality of generally plane sided, longitudinally extending wood boards arranged in parallel side-by-side relationship; and a metal strip extending between each adjacent pair of boards in a plane parallel to the confronting longitudinal sides of said pair of boards; each said board being similarly pre-stressed by bending forces in a plane parallel to the plane of said metal strip; each said strip being secured to said confronting faces of the corresponding adjacent pair of boards, whereby each board is retained in its prestressed state and applies a tensile stress to said metal strip secured to a longitudinal side of that board.
Claim 3
Dependent Claim
50 words
A decking section according to claim 1 wherein each said metal strip includes integral punched-out projections extending laterally therefrom in planes generally transverse to the longitudinal direction of the metal strip, said projections extending into adjacent boards to secure said adjacent boards in substantially face-to-face relationship with said metal strip.
Claim 4
Dependent Claim
28 words
A decking section according to claim 1 wherein said bending forces are such that each said board is forcibly bent into at least two, longitudinally spaced curved portions.
References Cited (Backward Citations)
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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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |