Patent application 13258900 (US), filed 2011-09-22
Publication number: US20120020826A1
Title: METHOD FOR PRODUCING AN ARTICLE HAVING A CAVITY
CPC codes: B22C   9/10
B22C   7/02
B22C   7/023
B22D  29/001
B22F   5/10
B22F2998/00
B22F   3/15
Office action: rejection, dated 2015-10-14
Rejection reasons: obviousness_103
Prior art cited: ref_id: EP 466419
ref_type: patent
severity: obviousness
ref_id: 6395117
ref_type: patent
severity: obviousness
Final disposition: granted (2015-10-14)