Patent application 14074593 (US), filed 2013-11-07
Publication number: US20150124977A1
Title: HEADSET IN-USE DETECTOR
CPC codes: H04R  29/00
H04R   1/1091
H04R  25/305
H04R  29/001
H04R2460/03
H04R2460/15
Office action: rejection, dated 2015-10-16
Rejection reasons: anticipation_102
obviousness_103
Prior art cited: ref_id: 7406179
ref_type: patent
severity: novelty_destroying
ref_id: JP 2008078721
ref_type: patent
severity: novelty_destroying
ref_id: JP 2008078721
ref_type: patent
severity: novelty_destroying
ref_id: 8938078
ref_type: patent
severity: novelty_destroying
ref_id: 7406179
ref_type: patent
severity: novelty_destroying
ref_id: 20140093094
ref_type: patent
severity: novelty_destroying
Final disposition: rejected (2015-10-16)