Granted Patent
Utility
US 5,125,021 · App. 07/486,425
Cellular network data transmission system
Inventor:
Mayer M. Lebowitz
Patented Case
View Patent ↗
Granted: Jun 23, 1992
Filed: Feb 28, 1990
Inventor
Mayer M. Lebowitz
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.