Granted Patent
Utility
US 5,146,486 · App. 07/401,651
Cellular network data transmission system
Inventor:
Mayer M. Lebowitz
Patented Case
View Patent ↗
Granted: Sep 8, 1992
Filed: Aug 31, 1989
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.