Granted Patent
Utility
US 4,939,746 · App. 07/181,441
Trunked radio repeater system
Inventor:
Jeffrey S. Childress
Patented Case
View Patent ↗
Granted: Jul 3, 1990
Filed: Apr 14, 1988
Inventor
Jeffrey S. Childress
Assignee (at issue)
General Electric Company
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.