Patent application 13732868 (US), filed 2013-01-02
Publication number: US20140185850A1
Title: METHOD AND APPARATUS FOR TONAL ENHANCEMENT IN HEARING AID
CPC codes: H04R  25/50
H04R  25/505
Office action: rejection, dated 2015-10-16
Rejection reasons: obviousness_103
Prior art cited: ref_id: 6198830
ref_type: patent
severity: obviousness
ref_id: 8213636
ref_type: patent
severity: obviousness
Final disposition: rejected (2015-10-16)