Static structures (e.g. – buildings) – Specified wear or friction-type traffic-carrying surface
Reexamination Certificate
2008-03-11
2008-03-11
Chilcot, Richard (Department: 3635)
Static structures (e.g., buildings)
Specified wear or friction-type traffic-carrying surface
C052S384000, C052S591400
Reexamination Certificate
active
10769364
ABSTRACT:
A polymeric interlocking tile for an adhesive-free assemblage with adjacent tiles having substantially similar, but inverted, edge interlocks thereon. The interlocks on each edge of a tile include a row of first and second sets of male-female types of alternating interlocks. The first interlock set includes a male lug projection having sidewalls forming one sidewall of a channel of U-shaped cross-section. The channel forms a female interlock cavity for the first set. The second interlock set is contiguous to the first set and includes a male projecting rib having two parallel sidewalls, one sidewall faces the edge and forms an opposite sidewall of the channel and an opposite, inwardly facing sidewall forms an enclosure for a second female cavity of the next set. At the opposite ends of each interlock row, the U-shaped channel sidewalls are wider to facilitate an initial interlock meshing between contiguous tiles of the assemblage.
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Chilcot Richard
Gilbert William
Presson Jerry M.
Presson Thomas F.
Selectech Inc.
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