Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yu Zheng0
Date of Patent
February 3, 2009
Patent Application Number
11052709
Date Filed
January 28, 2005
Patent Citations Received
Patent Primary Examiner
Patent abstract
A collapsible structure has at least three foldable frame members, each having a folded and an unfolded orientation. The structure has a fabric material covering portions of each frame member to form a panel for each frame member, with each panel further including a left side, a bottom side and a right side, with the left side of each panel coupled to the right side of an adjacent panel, and the right side of each panel coupled to the left side of another adjacent pane. The bottom side of at least one panel is positioned at a higher vertical level than the bottom side of at least one other panel.
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