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Publication numberUSD328345 S
Publication typeGrant
Application numberUS 07/718,869
Publication dateJul 28, 1992
Filing dateJun 21, 1991
Publication number07718869, 718869, US D328345 S, US D328345S, US-S-D328345, USD328345 S, USD328345S
InventorsThomas Ganse
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Air duct
US D328345 S
Abstract  available in
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  1. The ornamental design for an air duct, as shown.

FIG. 1 is a bottom, front, and right side perspective view of an air duct showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom view thereof.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6793171Apr 2, 2003Sep 21, 2004Northrop Grumman CorporationMethod and system for flying an aircraft
U.S. ClassificationD23/393