Granted Patent
Utility
US 6,009,323 · App. 08/846,450
Method of placing a call in a two-way radio communication system
Inventors:
Timothy Heffield, Craig Bishop, David Willis
Patented Case
View Patent ↗
Granted: Dec 28, 1999
Filed: May 1, 1997
Inventors
Timothy Heffield
Craig Bishop
David Willis
Assignee (at issue)
Motorola, 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.