Patent application 13774412 (US), filed 2013-02-22
Publication number: US20140238158A1
Title: Auxiliary Drive System
CPC codes: B60F   1/043
B60K  17/28
B60F2301/02
B60K  25/06
Office action: rejection, dated 2015-10-15
Rejection reasons: anticipation_102
obviousness_103
Prior art cited: ref_id: 4828452
ref_type: patent
severity: novelty_destroying
ref_id: 20080173113
ref_type: patent
severity: novelty_destroying
ref_id: 3581671
ref_type: patent
severity: novelty_destroying
ref_id: 4705450
ref_type: patent
severity: novelty_destroying
Final disposition: granted (2015-10-15)