Granted Patent
Utility
US 6,469,839 · App. 09/794,917
Projector apparatus
Inventor:
Kazuhiro Agata
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: Feb 28, 2001
Inventor
Kazuhiro Agata
Assignee (at issue)
NEC Viewtechnology, Ltd.
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.