Patent · US Expired

Floor covering of an elastomer material having a textured surface

US7288308B2 · kind B2 · utility

1Cited by

2References

10Claims

0Family size

Assignee

Carl Freudenberg KG · DE

Inventors

Gerhard Graab · Mannheim, DE
Alfons Butscher · Birkenau, DE
Peter Spissinger · Prüm, DE

Key dates

Filing date	May 6, 2004
Grant date	Oct 30, 2007
Priority date	—
Expiry date	Nov 3, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24479
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A floor covering of an elastomer material having a textured surface having a plurality of unevenly distributed reliefs, which partially overlap one another and are of a rectangular or square shape having rounded corners and extents of between 1.2 and 6 mm, the height of the reliefs being between 0.01 mm and 0.1 mm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.