Granted Patent
Utility
US 6,384,591 · App. 08/927,465
Hands-free signal level meter
Inventors:
Randall S. Estep, Dennis A. Zimmerman
Patented Case
View Patent ↗
Granted: May 7, 2002
Filed: Sep 11, 1997
Inventors
Randall S. Estep
Dennis A. Zimmerman
Assignee (at issue)
ComSonics, Inc.
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.