Granted Patent
Utility
US 6,744,205 · App. 10/251,224
Discharge lamp with improved light distribution characteristics
Inventors:
Shiro Iida, Noriyuki Uchida, Kenji Nakano, Tatsuhiro Yabuki
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Sep 20, 2002
Inventors
Shiro Iida
Noriyuki Uchida
Kenji Nakano
Tatsuhiro Yabuki
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.