Granted Patent
Utility
US 5,164,723 · App. 07/553,424
Configurable keyboard
Inventor:
Israel D. Nebenzahl
Patented Case
View Patent ↗
Granted: Nov 17, 1992
Filed: Jul 17, 1990
Inventor
Israel D. Nebenzahl
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.