Granted Patent
Utility
US 5,880,562 · App. 08/889,637
Fluorescent lamp lighting apparatus
Inventors:
Hiroki Nakagawa, Tetsuya Tahara, Youji Tashiro, Masataka Ozawa
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Jul 8, 1997
Inventors
Hiroki Nakagawa
Tetsuya Tahara
Youji Tashiro
Masataka Ozawa
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
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.