Road structure – process – or apparatus – Apparatus – Screed or drag
Reexamination Certificate
2007-04-17
2007-04-17
Hartmann, Gary S. (Department: 3671)
Road structure, process, or apparatus
Apparatus
Screed or drag
Reexamination Certificate
active
11017533
ABSTRACT:
A screed bar for a vibratory concrete screed is formed from a long hollow extrusion having generally flat enclosing walls and defining in cross section two triangular sections that share a common interior wall.
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Advanced Concrete Tools, Product Descriptions; Weber Concrete Tools—Products Page; http://www.concretescreed.com/products.htm; Oct. 25, 2003.
Magic Screeds; Allen Engineering Corporation Magic Screeds; http://www.alleneng.com/html—magicscreeds; Oct. 25, 2003.
Schmitt Michael W.
Sina Paul M.
Andrus Sceales Starke & Sawall LLP
Hartmann Gary S.
M-B-W Inc.
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