Patent application 13880220 (US), filed 2013-04-18
Publication number: US20130207518A1
Title: ELECTRICAL CONTACTS TO A RING TRANSDUCER
CPC codes: H10N  30/101
Y10T  29/42
H10N  30/06
H10N  30/302
H10N  30/87
H10N  30/875
H10N  30/03
B06B   1/0662
G01V   1/143
Office action: rejection, dated 2015-10-15
Rejection reasons: anticipation_102
obviousness_103
Prior art cited: ref_id: 3179826
ref_type: patent
severity: novelty_destroying
ref_id: 3384767
ref_type: patent
severity: novelty_destroying
ref_id: JP 53-58794
ref_type: patent
severity: novelty_destroying
ref_id: 6045208
ref_type: patent
severity: novelty_destroying
ref_id: 3179826
ref_type: patent
severity: novelty_destroying
Final disposition: granted (2015-10-15)