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Publication numberUSD521137 S1
Publication typeGrant
Application numberUS 29/221,441
Publication dateMay 16, 2006
Filing dateJan 14, 2005
Priority dateJan 14, 2005
Publication number221441, 29221441, US D521137 S1, US D521137S1, US-S1-D521137, USD521137 S1, USD521137S1
InventorsDavid Khalil
Original AssigneeRoyal Appliance Mfg. Co.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US D521137 S1
Abstract  available in
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  1. The ornamental design for a filter, as shown and described.

FIG. 1 is a perspective view from above of a filter showing my new design;

FIG. 2 is a right side elevational view thereof, with the left side elevational view being a mirror image thereof;

FIG. 3 is a front elevational view thereof, with a rear elevational view being a mirror image thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

Non-Patent Citations
1One (1) sheet of photographs of Filter Assembly of Bissell Homecare, Inc., Circa 2003.
2Three (3) sheets of photographs of Filter Assembly of General Electric Company, Circa 2003.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7507269Feb 17, 2006Mar 24, 2009Royal Appliance Mfg. Co.Bagless stick type vacuum cleaner
US7908706 *Feb 26, 2008Mar 22, 2011Electrolux Home Care Products, Inc.Upright vacuum cleaner with cyclonic air path
US20060162118 *Feb 17, 2006Jul 27, 2006Royal Appliance Mfg. Co.Bagless stick type vacuum cleaner
US20080263818 *Feb 26, 2008Oct 30, 2008Electrolux Home Care Products, Ltd.Upright Vacuum Cleaner with Cyclonic Air Path
U.S. ClassificationD23/365, D32/31
Cooperative ClassificationA47L9/1666, A47L5/26, A47L9/165, A47L5/24, A47L9/127
European ClassificationA47L9/12D, A47L5/24, A47L9/16D, A47L5/26, A47L9/16E2