Granted Patent
Utility
US 6,520,649 · App. 10/041,861
Image projection device and associated method
Inventor:
Michael Lamvik
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Jan 7, 2002
Inventor
Michael Lamvik
Assignee (at issue)
MCNC
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.