Patent application 14018339 (US), filed 2013-09-04
Publication number: US20150060149A1
Title: DRILL BIT HAVING SHEAR AND PICK-TYPE CUTTERS
CPC codes: E21B  10/43
E21B  10/54
E21B  10/55
E21B  10/633
Office action: rejection, dated 2015-10-13
Rejection reasons: anticipation_102
obviousness_103
indefiniteness_112
Prior art cited: ref_id: 20120031674
ref_type: patent
severity: novelty_destroying
ref_id: 3830321
ref_type: patent
severity: novelty_destroying
ref_id: 20120031674
ref_type: patent
severity: novelty_destroying
ref_id: 20070205023
ref_type: patent
severity: novelty_destroying
Final disposition: rejected (2015-10-13)