Patent application 14368652 (US), filed 2014-06-25
Publication number: US20150369021A1
Title: Stepped Liner Hanger Expander
CPC codes: E21B  43/105
E21B2200/04
E21B  23/042
E21B  34/06
E21B  43/108
Office action: rejection, dated 2015-10-19
Rejection reasons: anticipation_102
obviousness_103
indefiniteness_112
Prior art cited: ref_id: 7493946
ref_type: patent
severity: novelty_destroying
ref_id: 7493946
ref_type: patent
severity: novelty_destroying
ref_id: 20040159446
ref_type: patent
severity: novelty_destroying
Final disposition: granted (2015-10-19)