Patent application 13776161 (US), filed 2013-02-25
Publication number: US20140237819A1
Title: METHODS FOR FAN ASSEMBLIES AND FAN WHEEL ASSEMBLIES
CPC codes: B23P  15/006
Y10T  29/49332
C21D   9/50
C22F   1/04
F04D  29/281
F04D  29/34
F04D  29/388
Office action: rejection, dated 2015-10-16
Rejection reasons: obviousness_103
indefiniteness_112
Prior art cited: ref_id: 8052386
ref_type: patent
severity: obviousness
ref_id: 2022417
ref_type: patent
severity: obviousness
ref_id: 6508627
ref_type: patent
severity: obviousness
ref_id: 3300123
ref_type: patent
severity: obviousness
Final disposition: granted (2015-10-16)