Wall mounted ventilation fan door

Description

FIG. 1 is a front perspective view of a wall mounted ventilation fan door showing my new design;

FIG. 2 is a rear perspective view;

FIG. 3 is a front view;

FIG. 4 is a rear view;

FIG. 5 is a top view;

FIG. 6 is a bottom view;

FIG. 7 is a left side view; and

FIG. 8 is a right side view thereof.

Referenced Cited
U.S. Patent Documents
304356 September 1884 Perry
1275549 August 1918 Frere
1514643 November 1924 Wine
1677910 July 1928 Wills
1687843 October 1928 Miller
1713648 May 1929 Feinberg
1735430 November 1929 Girand
1761250 June 1930 Baltes
2035234 March 1936 Hoper
2084807 June 1937 Hueglin
2398017 April 1946 Lidin
Other references
  • 1981 Sweets Catalog File, 8.12/KA, p. 1.
Patent History
Patent number: D302311
Type: Grant
Filed: Nov 19, 1986
Date of Patent: Jul 18, 1989
Inventor: Norman B. Buck (Salisbury, NC)
Primary Examiner: A. Hugo Word
Attorney: Terry M. Gernstein
Application Number: 6/932,397
Classifications
Current U.S. Class: D25/48