Granted Patent
Utility
US 5,142,202 · App. 07/749,813
Starting and operating circuit for arc discharge lamp
Inventors:
Yiyoung Sun, Long Nguyen
Patented Case
View Patent ↗
Granted: Aug 25, 1992
Filed: Aug 26, 1991
Inventors
Yiyoung Sun
Long Nguyen
Assignee (at issue)
GTE Products Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.