Granted Patent
Utility
US 6,520,643 · App. 10/043,840
Image projection system
Inventors:
Robert L. Holman, Arthur Cox
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Jan 11, 2002
Inventors
Robert L. Holman
Arthur Cox
Assignee (at issue)
DigitalOptics Corporation International
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.