Flooring material for building
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United States of America Patent
Stats
-
Jul 30, 1996
Grant Date -
N/A
app pub date -
Feb 18, 1994
filing date -
May 29, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flooring material for building comprises a wood overlaid board having a pair of side faces parallel to each other and a flexible sheet which is integrally layered on the back face of the wood overlaid board. The lower portion of the wood overlaid board is provided with a plurality of nick grooves which extend from one side face to the other side face. The nick grooves are formed to such a depth and at such an interval as to impart the wood overlaid board with flexibility. The product of the specific gravity and thickness of the flexible sheet is larger than the product of the specific gravity and thickness of the wood overlaid board, thereby positioning the center of gravity of the flooring material for building in the flexible sheet.
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Cited Art Landscape
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