Electronic ballast
Description
Claims
The ornamental design for an electronic ballast, as shown and described.
Referenced Cited
Patent History
Patent number: D778833
Type: Grant
Filed: Apr 7, 2015
Date of Patent: Feb 14, 2017
Assignee: QINGDAO MEFINE ELECTRONICS TECHNOLOGY CO., LTD. (Shandong Province)
Inventors: Yongshan Li (Qingdao), Renjie Zhang (Qingdao), Xin Yang (Qingdao)
Primary Examiner: Derrick Holland
Application Number: 29/523,232
Type: Grant
Filed: Apr 7, 2015
Date of Patent: Feb 14, 2017
Assignee: QINGDAO MEFINE ELECTRONICS TECHNOLOGY CO., LTD. (Shandong Province)
Inventors: Yongshan Li (Qingdao), Renjie Zhang (Qingdao), Xin Yang (Qingdao)
Primary Examiner: Derrick Holland
Application Number: 29/523,232
Classifications
Current U.S. Class:
Transformer, Rectifier Or Casing Therefor (3) (D13/110)