HVAC filter replacement timer

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Description

FIG. 1 is a front elevational view of the HVAC filter replacement timer of the present invention;

FIG. 2 is a rear elevational view of the HVAC filter replacement timer of FIG. 1;

FIG. 3 is a left side elevational view of the HVAC filter replacement timer of FIG. 1;

FIG. 4 is a right side elevational view of the HVAC filter replacement timer of FIG. 1;

FIG. 5 is a top plan view of the HVAC filter replacement timer of FIG. 1; and,

FIG. 6 is a bottom plan view of the HVAC filter replacement timer of FIG. 1.

The broken lines showing of a letters and numbers in FIG. 1 are for illustrative purposes only and form no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D293557 January 5, 1988 Bartholoman et al.
D300306 March 21, 1989 Arnoux et al.
D320167 September 24, 1991 Imai
D321489 November 12, 1991 Heimburger et al.
D323463 January 28, 1992 Cham
D370911 June 18, 1996 Mo
D378357 March 11, 1997 Chan
D385801 November 4, 1997 Chan
Patent History
Patent number: D431196
Type: Grant
Filed: Oct 8, 1999
Date of Patent: Sep 26, 2000
Inventor: Timothy Godfrey (Rocky Mount, NC)
Primary Examiner: Nelson C. Holtje
Application Number: 0/112,075
Classifications
Current U.S. Class: Time-measuring Instrument Or Casing (D10/40); Plural Or Combined (D10/53)
International Classification: 1003;