Rug and carpet underlays substantially impervious to liquids
US5763040A · kind A · utility
54Cited by
14References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1996 |
| Grant date | Jun 9, 1998 |
| Priority date | — |
| Expiry date | Sep 18, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2205
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A carpet underlay comprising a fibrous nonwoven substrate composed of natural or synthetic fibers having in or on it a repellent finish which makes said substrate substantially imprevious to liquids, and a carpet having an underlay substantially impervious to liquids affixed to the carpet back rendering said carpet substantially impervious to liquids are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.