Filter material

- Carl Freudenberg
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Description

FIG. 1 is a front view of a filter material showing my new design;

FIG. 2 is an enlarged fragmentary cross-sectional view thereof, taken along line 2—2 of FIG. 1;

FIG. 3 is a front view of a second embodiment of my new design;

FIG. 4 is an enlarged fragmentary cross-sectional view thereof, taken along line 4—4 of FIG. 3; and,

FIG. 5 is a rear view of the filter material, which is identical for both embodiments.

Claims

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

Referenced Cited
U.S. Patent Documents
D34028 February 1901 Ault
D114051 March 1939 Winkel
D384820 October 14, 1997 Choi
D429074 August 8, 2000 Hurst et al.
D431369 October 3, 2000 Thomas
D440772 April 24, 2001 Visel
673041 April 1901 Ault
1441327 January 1923 Blum
2834809 May 1958 Schutte et al.
2858247 October 1958 De Swart
2878553 March 1959 Hirsch
3190412 June 1965 Rutter et al.
4483728 November 20, 1984 Bauernfeind
4999235 March 12, 1991 Lunn et al.
5202180 April 13, 1993 Watts
Other references
  • Plaid-34% Open Grille Pattern, The Harrington & King Perforating Co. Catalog, p. 141.
Patent History
Patent number: D451289
Type: Grant
Filed: Jan 25, 2001
Date of Patent: Dec 4, 2001
Assignee: Carl Freudenberg (Weinheim)
Inventor: Uwe Visel (Birkenau)
Primary Examiner: Robert M. Spear
Attorney, Agent or Law Firm: Fulbright & Jaworski
Application Number: 29/136,067
Classifications
Current U.S. Class: D5/53
International Classification: 0506;