Patent application 13300446 (US), filed 2011-11-18
Publication number: US20120132470A1
Title: APPARATUS AND METHOD FOR CONTROLLING OR LIMITING ROTOR ORBIT IN MOVING CAVITY MOTORS AND PUMPS
CPC codes: E21B   4/02
Y10T  29/49242
F01C   1/101
F03C   2/08
F04C   2/1071
F04C   2/1075
F04C  13/008
F04C2240/80
Office action: rejection, dated 2015-10-15
Rejection reasons: obviousness_103
indefiniteness_112
Prior art cited: ref_id: 3627453
ref_type: patent
severity: obviousness
ref_id: 20100040498
ref_type: patent
severity: obviousness
ref_id: 4311443
ref_type: patent
severity: obviousness
ref_id: 20020074167
ref_type: patent
severity: obviousness
Final disposition: granted (2015-10-15)