Patent application 13801477 (US), filed 2013-03-13
Publication number: US20140131031A1
Title: FILTRATION SYSTEM AND METHOD FOR A PACKER
CPC codes: E21B  43/086
E21B  49/08
E21B  33/12
E21B  43/08
E21B  49/081
E21B  49/087
E21B  49/10
Office action: rejection, dated 2015-10-16
Rejection reasons: anticipation_102
Prior art cited: ref_id: 20100071898
ref_type: patent
severity: novelty_destroying
Final disposition: granted (2015-10-16)