Floorboards for floorings
US8245477B2 · kind B2 · utility
105Cited by
239References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 8, 2003 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Sep 25, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/25
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Floorboards for making a floating floor have a core (30) which comprises at least two layers of material (L1, L2), which are arranged at different distances from the surface layer (31), and which differ in respect of material properties or material composition. Semi manufactures for making such floorboards are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.