Rug underlay
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Feb 16, 1988
Grant Date -
N/A
app pub date -
May 15, 1987
filing date -
May 15, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rug underlay comprising a centered layer of needle punched fiber batting, an upper outer corrugated layer of heat fused fibers, and a lower outer thin layer of a low friction polypropylene strips woven into a sheet. This article is used as a padding or an underlay for wall-to-wall carpeting.
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