Patent
   D424676
Priority
Oct 02 1998
Filed
Oct 02 1998
Issued
May 09 2000
Expiry
May 09 2014
Assg.orig
Entity
unknown
5
2
n/a
The ornamental design for an air filtration apparatus, as shown and described.

FIG. 1 is a top front perspective view of the air filtration apparatus, showing my new design;

FIG. 2 is a right side elevation view;

FIG. 3 is a front elevation view;

FIG. 4 is a left side elevation view;

FIG. 5 is a rear elevation view;

FIG. 6 is a top plan view; and,

FIG. 7 is a bottom plan view.

The surface shading on the illustrative air filtration apparatus is intended only to show the character and contour of the surfaces and not surface indicia.

Hoshino, Kiyoshi

Patent Priority Assignee Title
D449099, Feb 22 2000 3M Innovative Properties Company Blower filter unit
D665892, Aug 02 2011 SARTORIUS LAB INSTRUMENTS GMBH & CO KG Air filter device
D718853, Jul 02 2013 STEALTH INNOVATIVE SYSTEMS, LLC Air filter and bracket assembly
D844767, Jan 24 2018 XIAMEN AIRPPLE ELECTRONIC INDUSTRY CO., LTD. Air purifier
D854673, Dec 27 2017 Kice Industries, Inc. Air filter housing
Patent Priority Assignee Title
4636230, Dec 06 1985 Apparatus for air compressing and dust collecting
5741341, Aug 14 1995 Emerson Electric Co. Portable/mountable air cleaner
//
Executed onAssignorAssigneeConveyanceFrameReelDoc
Sep 28 1998HOSHINO, KIYOSHIEmerson Electric CoASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0095100494 pdf
Oct 02 1998Emerson Electric Co.(assignment on the face of the patent)
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule