Patent ID: 8075971

Claim:
A chair mat comprising a first rigid flat panel, the first flat panel having a first straight panel edge, a first chair bearing surface on one side of the first flat panel extending to the first straight panel edge and a first floor bearing surface on the other side of the first flat panel extending to the first straight panel edge; a second rigid flat panel, the second flat panel having a second straight panel edge, a second chair bearing surface on one side of the second flat panel extending to the second straight panel edge and a second floor bearing surface on the other side of the second flat panel extending to the second straight panel edge, the floor bearing surfaces being anti-skid and having no tensile strength across the abutting first and second straight panel edges through full movement of the first and second flat panels relative to one another; a non-woven flexible fabric sheet permanently adhered to and fully covering the chair bearing surfaces of the first and second flat panels with the first and second straight panel edges abutting; a material strip with high tensile strength filaments extending at least laterally in the material strip, the material strip extending the length of the abutting first and second straight panel edges and permanently adhered to the first and second bearing surfaces covered by the flexible fabric sheet between the flexible fabric sheet and the first and second flat panels.