Granted Patent
Utility
US 6,552,850 · App. 09/107,411
Device, method, and system of display for controlled viewing
Inventor:
Edward M. R. Dudasik
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Jun 30, 1998
Inventor
Edward M. R. Dudasik
Assignee (at issue)
Citicorp Development Center, 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.