Granted Patent
Utility
US 6,605,896 · App. 09/573,868
Low pressure mercury vapor discharge lamp and manufacturing method therefor
Inventors:
Junichi Takahashi, Takeshi Matsumura, Masao Yukawa
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: May 18, 2000
Inventors
Junichi Takahashi
Takeshi Matsumura
Masao Yukawa
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.