Patent application 13606749 (US), filed 2012-09-07
Publication number: US20130062089A1
Title: DEVICE FOR SUPPLYING RINSING MEDIUM IN A HAMMER DRILL
CPC codes: E21B  10/00
F27D   3/1527
C21B   7/12
Office action: rejection, dated 2015-10-16
Rejection reasons: obviousness_103
indefiniteness_112
Prior art cited: ref_id: 6575254
ref_type: patent
severity: obviousness
ref_id: 5129467
ref_type: patent
severity: obviousness
Final disposition: granted (2015-10-16)