Granted Patent
Utility
US 5,454,024 · App. 08/196,979
Cellular digital packet data (CDPD) network transmission system incorporating cellular link integrity monitoring
Inventor:
Mayer M. Lebowitz
Patented Case
View Patent ↗
Granted: Sep 26, 1995
Filed: Feb 15, 1994
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.