Patent application 13661901 (US), filed 2012-10-26
Publication number: US20130108442A1
Title: VARIABLE-GEOMETRY FAN AND METHOD FOR CONTROL THEREOF
CPC codes: F04D  29/382
F04D  29/36
Office action: rejection, dated 2015-10-14
Rejection reasons: indefiniteness_112
Final disposition: rejected (2015-10-14)