Patent application 13993880 (US), filed 2013-07-15
Publication number: US20130292343A1
Title: SYSTEM AND METHOD FOR COLLECTING COMPOUNDS IN THE GROUND
CPC codes: B09B   1/006
C02F   1/62
Y02P  10/20
B09C   1/02
C22B   3/04
Office action: rejection, dated 2015-10-15
Rejection reasons: obviousness_103
Prior art cited: ref_id: 3461675
ref_type: patent
severity: obviousness
ref_id: EP 0775512
ref_type: patent
severity: obviousness
ref_id: 20080173576
ref_type: patent
severity: obviousness
ref_id: 20080075536
ref_type: patent
severity: obviousness
Final disposition: rejected (2015-10-15)