Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 17, 2009
Patent Application Number
11554220
Date Filed
October 30, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
A collapsible apparatus includes a frame member being formed from a flexible twistable material, a first membrane and a second membrane, and an inflatable bladder. The second membrane is removably attachable to the first membrane.
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