Granted Patent
Utility
US 6,529,824 · App. 09/669,527
Personal communication system for communicating voice data positioning information
Inventors:
Michael L. Obradovich, John Dinkel, Michael Kent
Patented Case
View Patent ↗
Granted: Mar 4, 2003
Filed: Sep 25, 2000
Inventors
Michael L. Obradovich
John Dinkel
Michael Kent
Assignee (at issue)
American Calcar, 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.