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US3846219A Expired / Lapsed US ⏱️ 0.0 years remaining

Wood-chip boards

Assignee: Uniboard AG
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Filing: 1972-08-07
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Granted: 1974-11-05
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Expires: 1992-08-07
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Abstract

Abstract 1. A wood-chip board comprising a coarse chip innermost layer containing coarse wood chips having a lateral length of up to 10mm., and two external fine chip layers overlaying said coarse layer containing wooden fibers with a diameter of less than 0.1 mm. and exhibiting a fineness ratio of a least 1:50, the coarse chips and wooden fibers being glued with a curable resinous material, each external layer being overlaid with a decorative paper sheet impregnated with curable resinous material, and at least one of said decorative sheets and neighboring portions of the adjacent fine chip layer are together embosses and cured to yield a relief-like pattern, the depth of the relief extending into the adjacent fine chip layer to an extent which is greater than the thickness of the decorative layer.

Inventors

  • 👤 A Kunz

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 10:33
CPC Classifications
B; B32; B32B; B32B21/00; B32B21/02; B27; B27N; B27N3/00; B27N3/08; B27N3/18; B27N3/06; B27N7/00; B27N7/005; B32B21/04; B32B21/042; B32B21/06; B32B3/00; B32B3/26; B32B3/30; B32B2451/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039; Y10T156/1041; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24537; Y10T428/24554; Y10T428/24802; Y10T428/24934; Y10T428/25; Y10T428/253; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31957; Y10T428/3196

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 131 words
A wood-chip board comprising a coarse chip innermost layer containing coarse wood chips having a lateral length of up to 10mm., and two external fine chip layers overlaying said coarse layer containing wooden fibers with a diameter of less than 0.1 mm. and exhibiting a fineness ratio of a least 1:50, the coarse chips and wooden fibers being glued with a curable resinous material, each external layer being overlaid with a decorative paper sheet impregnated with curable resinous material, and at least one of said decorative sheets and neighboring portions of the adjacent fine chip layer are together embosses and cured to yield a relief-like pattern, the depth of the relief extending into the adjacent fine chip layer to an extent which is greater than the thickness of the decorative layer.
Claim 2
Dependent Claim 131 words
A wood-chip board comprising a coarse chip innermost layer containing coarse wood chips having a lateral length of up to 10mm., and two external fine chip layers overlaying said coarse layer containing wooden fibers with a diameter of less than 0.1 mm. and exhibiting a fineness ratio of a least 1:50, the coarse chips and wooden fibers being glued with a curable resinous material, each external layer being overlaid with a decorative paper sheet impregnated with curable resinous material, and at least one of said decorative sheets and neighboring portions of the adjacent fine chip layer are together embosses and cured to yield a relief-like pattern, the depth of the relief extending into the adjacent fine chip layer to an extent which is greater than the thickness of the decorative layer.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-11-04 1978-05-06 1978-11-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-04 1982-05-06 1982-11-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-04 1986-05-06 1986-11-05 $7700.00 Window Closed / Lapsed

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