Granted Patent
Utility
US 6,404,414 · App. 09/194,446
Liquid crystal device, electro-optical device, and projection display device employing the same
Inventor:
Kenya Ishii
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Nov 27, 1998
Inventor
Kenya Ishii
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.