Granted Patent
Utility
US 5,454,025 · App. 07/975,243
Switch bypass for a public safety calling system
Inventors:
Robert J. Mulrow, Donald J. Jester
Patented Case
View Patent ↗
Granted: Sep 26, 1995
Filed: Nov 12, 1992
Inventors
Robert J. Mulrow
Donald J. Jester
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.