Granted Patent
Utility
US 6,582,091 · App. 09/791,580
Illumination device
Inventors:
Tatsuaki Funamoto, Masahiro Uchida
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Feb 26, 2001
Inventors
Tatsuaki Funamoto
Masahiro Uchida
Assignee (at issue)
SEIKO EPSON CORPORATION
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.