Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Andrew John Blackburn0
Anthony Paul Rawlinson0
Stephen Robert Tennison0
Date of Patent
January 9, 2007
Patent Application Number
10760083
Date Filed
January 16, 2004
Patent Citations Received
Patent Primary Examiner
Patent abstract
An improved filter element which can be used in gas masks is formed of short lengths of porous monolithic carbon formed by partially curing a phenolic resin to a solid, comminuting the partially cured resin, extruding the comminuted resin, sintering the extruded resin so as to produce a form-stable sintered product and carbonising and activating the form-stable sintered product.
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