Underdrain

Information

  • Patent Grant
  • D519601
  • Patent Number
    D519,601
  • Date Filed
    Friday, September 17, 2004
    20 years ago
  • Date Issued
    Tuesday, April 25, 2006
    18 years ago
Abstract
Description

FIG. 1 is a plan view of my underdrain;


FIG. 2 is a bottom view of the apparatus depicted in FIG. 1.


FIG. 3 is a front elevation view of the apparatus depicted in FIG. 1.


FIG. 4 is a rear elevation view of the apparatus depicted in FIG. 1.


FIG. 5 is a right side view of the apparatus depicted in FIG. 1; and,


FIG. 6 is a left side view of the apparatus depicted in FIG. 1.


Claims
  • The ornamental design for an underdrain, as shown and described.
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3840117 Ross Oct 1974 A
3956134 Sturgill May 1976 A
5068034 Walter Nov 1991 A
5108627 Berkebile Apr 1992 A
5149427 Brown Sep 1992 A
5160614 Brown Nov 1992 A
5296138 Walter Mar 1994 A
5328608 Bergmann Jul 1994 A
5462664 Neuspiel Oct 1995 A
5489388 Brown et al. Feb 1996 A
5639384 Brown Jun 1997 A
6143188 Jantsch et al. Nov 2000 A