Patent application 13229196 (US), filed 2011-09-09
Publication number: US20120000249A1
Title: METHOD FOR PRODUCING OPTICAL FIBER PREFORM
CPC codes: C03B  37/01446
Office action: rejection, dated 2015-10-16
Rejection reasons: obviousness_103
indefiniteness_112
Prior art cited: ref_id: 20020056292
ref_type: patent
severity: obviousness
ref_id: 20080287279
ref_type: patent
severity: obviousness
ref_id: 5306322
ref_type: patent
severity: obviousness
Final disposition: pending (2015-10-16)