Road structure – process – or apparatus – Pavement – Modules or blocks
Reexamination Certificate
2006-06-01
2008-08-19
Hartmann, Gary S. (Department: 3671)
Road structure, process, or apparatus
Pavement
Modules or blocks
C404S041000, C052S392000, C052S570000
Reexamination Certificate
active
07413374
ABSTRACT:
A portable overlapping secured mat system with uniformly sized plastic mats joined together to form structural support surface for use by persons or equipment. The mats' edges have recessed upper and lower lips with finger projections extending from the upper lips sized to fit into holes of adjacent mats' lower lips securing the mats together when the front edge of the finger projections are moved into a recesses of the back wall of the hole.
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Houghton Ron
Rogers D. Scott
Brignac Len R.
Hartmann Gary S.
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