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Publication numberUSD400949 S
Publication typeGrant
Application numberUS 29/022,706
Publication dateNov 10, 1998
Filing dateMay 11, 1994
Publication number022706, 29022706, US D400949 S, US D400949S, US-S-D400949, USD400949 S, USD400949S
InventorsGary S. Gale
Original AssigneeEnviro Works
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Portable shade structure
US D400949 S
Abstract  available in
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  1. The ornamental design for a portable shade structure, as shown and described.

FIG. 1 is a perspective view of a portable shade structure in accordance with my design;

FIG. 2 is a top plan view;

FIG. 3 is a bottom plan view;

FIG. 4 is a right side elevation, of which the left side elevation is a mirror image;

FIG. 5 is a front elevation; and,

FIG. 6 is a rear elevation view.

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US7048333 *May 3, 2002May 23, 2006Martinez Robert ECollapsible sun shade for a chair
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US7549433Aug 1, 2005Jun 23, 2009Patent Catergory Corp.Vertically stacked collapsible structures
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US9644390 *Jan 4, 2017May 9, 2017Derek GarvensPortable personal privacy screen
US20030106577 *May 3, 2002Jun 12, 2003Martinez Robert E.Collapsible sun shade for a chair
US20050263175 *Aug 1, 2005Dec 1, 2005Patent Category Corp.Vertically stacked collapsible structures
US20070246093 *May 30, 2007Oct 25, 2007Yu ZhengCollapsible structures
US20080163826 *Jan 5, 2007Jul 10, 2008Sportpet Designs, Inc.Collapsible Bird Structure
US20090021902 *Apr 28, 2008Jan 22, 2009Yu ZhengCollapsible structures having enhancements
US20090050188 *Aug 5, 2008Feb 26, 2009Patent Category Corp.Collapsible structures
USD741437 *Dec 31, 2012Oct 20, 2015Lso LpSport shelter
USD763391May 31, 2016Aug 9, 2016Zhifeng XuFoldable tent
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WO2002012656A3 *Aug 3, 2001Aug 8, 2002Gray Matter Holdings LlcCollapsible shade for a mat
U.S. ClassificationD21/834