Floor covering
US7779597B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2007 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Nov 1, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/17
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Hard panels formed from a wood-based material and having a decorative layer for floor coverings are provided, at least on two opposite edges, with coupling devices made in one piece with the panels wherein similar panels may be coupled together to form a floor covering, wherein these coupling devices provide for an interlocking in a direction perpendicular to the plane of coupled panels, as well as in a direction perpendicular to the edges concerned and parallel to the plane of coupled panels. These coupling devices are constituted of a tongue and a groove. The top side of the tongue has a protrusion that cooperates with a meshing recess located in the lower side of the upper lip of the groove of the coupling devices, and a portion extending generally parallel with the plane of the panel to form a contact surface cooperating with the lower side of the upper lip of the groove.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.