TREA

Concrete tunnel for a rapid transit train

Follow

Information

  • Patent Grant
  • D490533
  • Patent Number
    D490,533
  • Date Filed
    Friday, January 24, 2003
    22 years ago
  • Date Issued
    Tuesday, May 25, 2004
    21 years ago
Information
Abstract
Description




FIG. 1 is a perspective view of a concrete tunnel for a rapid transit train and showing my new design, with a middle portion broken away to disclose indefinite length; and,




FIG. 2 is an end view thereof.



Claims
  • The ornamental design of a concrete tunnel for a rapid transit train, as shown and described.
US Referenced Citations (3)
Number Name Date Kind
4993872 Lockwood Feb 1991 A
5252002 Day Oct 1993 A
D454203 Bellavance Mar 2002 S
Non-Patent Literature Citations (1)
Entry
BEBO Arch System, Zurn Industries, Inc., 1982.