Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Michael Cupicha0
Robert A. Brunell0
Ronald L. Gerson0
Date of Patent
March 16, 2010
0Patent Application Number
108929330
Date Filed
July 16, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A flat-folding mask includes a filter layer forming a rim. The filter layer has first and second side panels extending from the rim. A substantially centrally located front panel bridges the first and second side panels, the front panel being substantially flat. The filter layer further includes a fused portion that is seamless and spaced from the rim. Triangular pleats may add support to the side walls and increase the effective filtration area of the mask.
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