Patent application 13754736 (US), filed 2013-01-30
Publication number: US20130192897A1
Title: Downhole Tool Activation
CPC codes: E21B  10/28
E21B  10/32
E21B  23/00
E21B  23/006
E21B   7/00
E21B  47/00
Office action: rejection, dated 2015-10-16
Rejection reasons: obviousness_103
indefiniteness_112
Prior art cited: ref_id: WO 2011117602
ref_type: patent
severity: obviousness
ref_id: 20040168832
ref_type: patent
severity: obviousness
Final disposition: granted (2015-10-16)