Granted Patent
Utility
US 4,607,364 · App. 06/549,739
Multimode data communication system
Inventors:
Jeffrey Neumann, David W. Petr, George W. Schramm, John B. Sharp
Patented Case
View Patent ↗
Granted: Aug 19, 1986
Filed: Nov 8, 1983
Inventors
Jeffrey Neumann
David W. Petr
George W. Schramm
John B. Sharp
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.