Granted Patent
Utility
US 6,812,920 · App. 09/807,725
Display device
Inventor:
Hiroshi Otsuka
Patented Case
View Patent ↗
Granted: Nov 2, 2004
Filed: Apr 18, 2001
Inventor
Hiroshi Otsuka
Assignee (at issue)
NEC—Mitsubishi Electric Visual Systems 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.