Patent application 13574733 (US), filed 2012-07-23
Publication number: US20120286566A1
Title: Rubber Crawler Having Metal Core for Improvement of Wheel Separation and Durability
CPC codes: B62D  55/244
E02F   9/02
Office action: rejection, dated 2015-10-19
Rejection reasons: obviousness_103
indefiniteness_112
Prior art cited: ref_id: 7413268
ref_type: patent
severity: obviousness
Final disposition: granted (2015-10-19)