Granted Patent
Utility
US 6,528,822 · App. 09/816,209
Electro-optical device
Inventor:
Masao Murade
Patented Case
View Patent ↗
Granted: Mar 4, 2003
Filed: Mar 26, 2001
Inventor
Masao Murade
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.