Granted Patent
Utility
US 5,986,402 · App. 08/961,262
Metal halide lamp
Inventors:
Mitsuo Narita, Akihiko Sugitani, Yoshihiro Horikawa, Takashi Ito, Tatsushi Igarashi
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Oct 30, 1997
Inventors
Mitsuo Narita
Akihiko Sugitani
Yoshihiro Horikawa
Takashi Ito
Tatsushi Igarashi
Assignee (at issue)
USHIO DENKI KABUSHIKI KAISHA
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.