Panel filter

- Donaldson Company, Inc.
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Description

FIG. 1 is a perspective view of a panel filter embodying our new design;

FIG. 2 is a front side elevational view thereof, the rear side elevational view being a mirror image thereof;

FIG. 3 is a right end elevational view thereof;

FIG. 4 is a left end elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

Claims

The ornamental design for a panel filter, as shown and described.

Referenced Cited
U.S. Patent Documents
3397518 August 1968 Rogers
4725296 February 16, 1988 Kurotobi
5620505 April 15, 1997 Koch et al.
5667545 September 16, 1997 Honda et al.
5674302 October 7, 1997 Nakayama et al.
5679122 October 21, 1997 Moll et al.
5741351 April 21, 1998 Beal et al.
5782944 July 21, 1998 Justice
5792229 August 11, 1998 Sassa et al.
5795361 August 18, 1998 Lanier, Jr. et al.
Foreign Patent Documents
WO 99/00587 January 1999 WO
Patent History
Patent number: D439963
Type: Grant
Filed: Dec 3, 1999
Date of Patent: Apr 3, 2001
Assignee: Donaldson Company, Inc. (Minneapolis, MN)
Inventors: Steven Scott Gieseke (Richfield, MN), Robert Allen Dushek (Richfield, MN), Peter Murray (Minneapolis, MN)
Primary Examiner: Lisa Lichtenstein
Attorney, Agent or Law Firm: Merchant & Gould P.C.
Application Number: 29/114,964
Classifications
Current U.S. Class: Filter (D23/365)
International Classification: 2304;