Granted Patent
Utility
US 6,476,555 · App. 09/523,485
Long-life metal halide lamp
Inventors:
Masato Yoshida, Takayuki Murase
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Mar 10, 2000
Inventors
Masato Yoshida
Takayuki Murase
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.