Granted Patent
Utility
US 6,323,970 · App. 09/670,414
Method of producing switchable holograms
Inventor:
Milan Momcilo Popovich
Patented Case
View Patent ↗
Granted: Nov 27, 2001
Filed: Sep 26, 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.