Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yu Zheng0
Date of Patent
December 18, 2007
0Patent Application Number
106651940
Date Filed
September 17, 2003
0Patent Citations Received
Patent Primary Examiner
0
Patent abstract
Collapsible structures are provided that have an enclosed interior space that can be used to hold and contain water or other matter. The interior space is defined by an enclosing wall and a base that are both waterproof to prevent leakage of the water or matter contained in the interior space. None, one or more foldable frame members can be provided as part of the enclosing wall and the base, or a foldable frame member can be provided as part of a rim member. The frame members allow the resulting structure to be twisted and folded to reduce the overall size of the structure.
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