Patent application 14631116 (US), filed 2015-02-25
Publication number: US20150238890A1
Title: FABRIC FILTER SYSTEM AND METHOD FOR CLEANING THE SAME
CPC codes: B01D  46/04
B01D  46/58
B01D  46/71
B01D  46/023
Office action: rejection, dated 2015-10-13
Rejection reasons: obviousness_103
Prior art cited: ref_id: 20120137890
ref_type: patent
severity: obviousness
ref_id: 4264282
ref_type: patent
severity: obviousness
Final disposition: granted (2015-10-13)