Granted Patent
Utility
US 5,677,688 · App. 07/882,432
Optomechanical information entry device
Inventors:
Kerry O'Mara, Robert R. Demers, William John Bachman, Paul Smalser
Patented Case
View Patent ↗
Granted: Oct 14, 1997
Filed: May 13, 1992
Inventors
Kerry O'Mara
Robert R. Demers
William John Bachman
Paul Smalser
Assignee (at issue)
David Sarnoff Research 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.