Patent application 13397849 (US), filed 2012-02-16
Publication number: US20130017029A1
Title: GENERAL-PURPOSE MULTIPLE-CUTTING EDGE DRILL
CPC codes: B23B  51/02
Y10T 408/909
B23B2251/085
B23B2251/14
B23B2251/18
Office action: rejection, dated 2015-10-15
Rejection reasons: anticipation_102
obviousness_103
Prior art cited: ref_id: Sun CN 201267890
ref_type: patent
severity: novelty_destroying
ref_id: Sun CN 201267890
ref_type: patent
severity: novelty_destroying
Final disposition: granted (2015-10-15)