Granted Patent
Utility
US 4,243,890 · App. 05/717,001
Isolator/switching assembly for data processing terminal
Inventors:
Bruce Miller, Gus C. Gadonas, Frank C. Donofrio
Patented Case
View Patent ↗
Granted: Jan 6, 1981
Filed: Aug 23, 1976
Inventors
Bruce Miller
Gus C. Gadonas
Frank C. Donofrio
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.