Air filter
Description
FIG. 1 is a perspective view of an air filter, showing my new design;
FIG. 2 is a front, rear, and left and right side elevational view thereof;
FIG. 3 is a top plan view thereof; and,
FIG. 4 is a bottom plan view thereof.
The broken-line showing of environmental structure is for illustrative purposes only and forms no part of the claimed design.
Claims
The ornamental design for an air filter, as shown and described.
Referenced Cited
U.S. Patent Documents
3653189 | April 1972 | Miyake et al. |
5248323 | September 28, 1993 | Stevenson |
Patent History
Patent number: D450826
Type: Grant
Filed: Sep 1, 1998
Date of Patent: Nov 20, 2001
Inventor: Seoung-Wook Song (Seoul)
Primary Examiner: Lisa Lichtenstein
Attorney, Agent or Law Firms: R. Neil Sudol, Henry D. Coleman
Application Number: 29/093,006
Type: Grant
Filed: Sep 1, 1998
Date of Patent: Nov 20, 2001
Inventor: Seoung-Wook Song (Seoul)
Primary Examiner: Lisa Lichtenstein
Attorney, Agent or Law Firms: R. Neil Sudol, Henry D. Coleman
Application Number: 29/093,006
Classifications