Pleated filter

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Description

FIG. 1 is a front elevation view of a pleated filter, showing, my new design;

FIG. 2 is a top plan view of the pleated filter of FIG. 1, with the bottom plan view being identical thereto;

FIG. 3 is a rear elevation view of the pleated filter shown in FIG. 1; and,

FIG. 4 is a right side view of the pleated filter of FIG. 1, with the left side view being identical thereto.

The features depicted in broken lines are for illustrative purposes only and do not form a part of the claimed design.

Referenced Cited
U.S. Patent Documents
RE30782 October 27, 1981 van Turnhout
2486728 November 1949 Asad
2790207 April 1957 Steele et al.
3112264 November 1963 Bub
4215682 August 5, 1980 Kubik et al.
4363682 December 14, 1982 Thiebault
4588537 May 13, 1986 Klaase et al.
4592815 June 3, 1986 Nakao
4734195 March 29, 1988 Lhuillier et al.
4798850 January 17, 1989 Brown
4904174 February 27, 1990 Moosmayer et al.
5122048 June 16, 1992 Deeds
5230800 July 27, 1993 Nelson
5252111 October 12, 1993 Spencer et al.
5350620 September 27, 1994 Sundet et al.
5401446 March 28, 1995 Tsai et al.
5496507 March 5, 1996 Angadjivand et al.
5512172 April 30, 1996 Marble
Foreign Patent Documents
WO 97/30771 August 1997 WOX
Patent History
Patent number: D414855
Type: Grant
Filed: Jul 28, 1998
Date of Patent: Oct 5, 1999
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventor: Robert J. Reuter (Woodbury, MN)
Primary Examiner: Lisa Lichtenstein
Attorney: David B. Patchett
Application Number: 0/91,334
Classifications
Current U.S. Class: Filter (D23/365)
International Classification: 2304;