Floor covering with interlocking design
US9695601B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2014 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Aug 19, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F2201/0161
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Surface coverings, such as floor coverings, with an interlocking design are described. Methods of making the surface coverings are further described. A plank including a resilient composite sheet having four sides, an upper surface, a lower surface, and an overall thickness, and said composite sheet comprising at least one base layer, wherein said at least one base layer comprising at least one polymeric material and at least one filler, wherein opposite sides of the composite sheet comprise a first tongue on a first side and a first groove on the opposite second side, wherein the first tongue and first groove have complementary shape to each other to be interlockingly engageable with a corresponding groove or tongue on an adjacent floor plank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.