Granted Patent
Utility
US 6,498,672 · App. 10/152,096
Electro-optical device and projection display device including the same
Inventor:
Hiromi Saitoh
Patented Case
View Patent ↗
Granted: Dec 24, 2002
Filed: May 22, 2002
Inventor
Hiromi Saitoh
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.