Window adapter for portable box fans

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Description

FIG. 1 is a perspective view;

FIG. 2 is a front view;

FIG. 3 is a left side view;

FIG. 4 is a right side view; and,

FIG. 5 is a top, view, the bottom being a mirror image of that shown.

Referenced Cited
U.S. Patent Documents
RE34334 August 3, 1993 Chaney
2448671 September 1948 Itord
4683923 August 4, 1987 Harris
Patent History
Patent number: D353452
Type: Grant
Filed: Apr 27, 1993
Date of Patent: Dec 13, 1994
Inventor: Larry C. Groenhoff (Loveland, CO)
Primary Examiner: Lisa P. Lichtenstein
Attorney: Dean P. Edmundson
Application Number: 0/7,556