Granted Patent
Utility
US 6,690,436 · App. 10/347,390
Light-modulating, electrically responsive privacy screen
Inventors:
Stanley W. Stephenson, John W. Boettcher, David J. Giacherio
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Jan 21, 2003
Inventors
Stanley W. Stephenson
John W. Boettcher
David J. Giacherio
Assignee (at issue)
EASTMAN KODAK COMPANY
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.