Granted Patent
Utility
US 6,424,437 · App. 09/685,350
Projection display employing switchable holographic optical elements
Inventor:
Milan Momcilo Popovich
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Oct 10, 2000
Inventor
Milan Momcilo Popovich
Assignee (at issue)
DigiLens Inc.
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.