Patent application 14144665 (US), filed 2013-12-31
Publication number: US20150182898A1
Title: RIDGID POROUS PLASTIC FILTERS INCORPORATING POLYMERIC PARTICLES AND POLYMERIC FIBERS
CPC codes: B01D  46/2403
B01D  39/04
B01D  39/1661
B01D  46/2407
B01D2239/10
Office action: rejection, dated 2015-10-16
Rejection reasons: obviousness_103
indefiniteness_112
Prior art cited: ref_id: 20080078152
ref_type: patent
severity: obviousness
ref_id: 20080197065
ref_type: patent
severity: obviousness
ref_id: 20110178491
ref_type: patent
severity: obviousness
Final disposition: rejected (2015-10-16)