Concrete finishing process
US4859504A · kind A · utility
Inventors
Key dates
| Filing date | May 25, 1988 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | May 25, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB44F9/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A cementitious slab first has generally straight intersecting lines drawn thereon and the surface of the slab is thereafter cut in order to form narrow shallow grooves therein extending along the previously drawn lines. The entire upper surface of the slab is then washed with an acid wash, neutralized and then pressure washed. A first stain coat is then evenly applied to the upper surface of the slab including the grooves and a second stain coat is thereafter applied to at least some of the discrete areas of the upper surface of the slab in an uneven manner with the second stain being darker than the first stain to thereby render a mottled appearance to the upper surface of the slab. Thereafter, the entire upper surface of the slab including the grooves may be sealed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.