Concrete bridge section

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Information

Patent Grant
D406902

References
Source

Patent Number
D406,902
Date Filed
Monday, July 28, 1997
27 years ago
Date Issued
Tuesday, March 16, 1999
25 years ago

Inventors
- William D. Lockwood
Original Assignees
- Con/Span Bridge Systems Ltd.
Examiners
- Clark; Doris
Agents
- Jacox, Meckstroth & Jenkins

US Classifications
- D25 - Building units and construction elements
Field of Search
- US
- D25 199
- D25 1
- 014 24
- 014 771
International Classifications
- 2503
- Term of Grant
  14Years

Information

Abstract

Description

Claims

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

US Referenced Citations (5)

Number	Name	Date	Kind
D356163	Ryan	Mar 1995
2161176	Leisner	Jun 1939
4564313	Niswander et al.	Jan 1986
4587684	Miller	May 1986
4797030	Lockwood	Jan 1989

Foreign Referenced Citations (1)

Number	Date	Country
850843	Jul 1981	SUX