Patent
   D617062
Priority
Mar 03 2009
Filed
Mar 03 2009
Issued
Jun 01 2010
Expiry
Jun 01 2024
Assg.orig
Entity
unknown
0
4
n/a
The ornamental design of a dog blocking tunnel attachment for a cat litter box, as shown and described.

FIG. 1 is a perspective view of dog blocking tunnel attachment for a cat litter box and showing our new design;

FIG. 2 is a larger perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a side view thereof, the opposite side view being a mirror image;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The cat litter box shown in phantom in FIG. 1 is for illustrative purpose only and forms no part of the claimed design.

Woods, Dianna K., Woods, Garrett J.

Patent Priority Assignee Title
Patent Priority Assignee Title
4846110, Nov 18 1987 Protective entrance device for birdhouses
5228410, Sep 18 1991 Safe entry for bird houses
7093563, Jun 21 2005 Gold Crest Distributing, LLC Protective entrance device for birdhouses
D537989, Aug 13 2004 Gold Crest Distributing, LLC Birdhouse entrance
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