Patent application 13132892 (US), filed 2011-09-21
Publication number: US20120001719A1
Title: DUST CORE AND METHOD FOR MANUFACTURING THE SAME
CPC codes: B22F   3/02
H01F   1/12
H01F  41/0246
Y10T  29/49826
B22F   1/10
B22F   3/24
B22F2003/248
B22F2998/10
C22C2202/02
H01F   1/1475
H01F   1/24
H01F   1/26
H01F   1/33
B22F   9/082
C22C   1/05
B22F   3/10
Office action: rejection, dated 2015-10-16
Rejection reasons: obviousness_103
indefiniteness_112
double_patenting
Prior art cited: ref_id: 20050257854
ref_type: patent
severity: obviousness
ref_id: 6284060
ref_type: patent
severity: obviousness
ref_id: 20120048063
ref_type: patent
severity: obviousness
ref_id: 20020014280
ref_type: patent
severity: obviousness
ref_id: 20030150523
ref_type: patent
severity: obviousness
Final disposition: granted (2015-10-16)