Granted Patent
Utility
US 6,800,997 · App. 10/106,214
Cold-cathode fluorescent lamp
Inventors:
Hirofumi Yamashita, Haruo Yamazaki, Toshihiro Terada, Shinji Kihara
Patented Case
View Patent ↗
Granted: Oct 5, 2004
Filed: Mar 27, 2002
Inventors
Hirofumi Yamashita
Haruo Yamazaki
Toshihiro Terada
Shinji Kihara
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.