Patent application 13823654 (US), filed 2013-06-19
Publication number: US20140144708A1
Title: Modular Rig Design
CPC codes: E21B  21/01
E21B  15/00
E21B  15/02
E21B  21/001
E21B  21/065
Office action: rejection, dated 2015-10-15
Rejection reasons: obviousness_103
Prior art cited: ref_id: 20080283301
ref_type: patent
severity: obviousness
ref_id: 3688781
ref_type: patent
severity: obviousness
Final disposition: pending (2015-10-15)