Precast concrete bridge unit

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Description

FIG. 1 is a perspective view of a precast concrete bridge unit and showing my new design;

FIG. 2 is an end view thereof, the opposite end view being the same; and,

FIG. 3 is a side view thereof, the opposite side view being the same.

Claims

The ornamental design of a precast concrete bridge unit, as shown and described.

Referenced Cited
U.S. Patent Documents
D47171 March 1915 Smith
2161176 June 1939 Leisner
4564313 January 14, 1986 Niswander et al.
4587684 May 13, 1986 Miller
4993872 February 19, 1991 Lockwood
D356163 March 7, 1995 Ryan
5590433 January 7, 1997 Fricke
D406902 March 16, 1999 Lockwood
Patent History
Patent number: D511215
Type: Grant
Filed: Nov 19, 2004
Date of Patent: Nov 1, 2005
Assignee: Con/Span Bridge Systems Ltd. (Dayton, OH)
Inventor: Lynne A. Vaia (Beavercreek, OH)
Primary Examiner: Doris Clark
Attorney: Jacox, Meckstroth & Jenkins
Application Number: 29/217,514
Classifications
Current U.S. Class: Structure (D25/1)