Granted Patent
Utility
US 6,205,326 · App. 09/095,669
Method for determining when a communication unit is located within a preferred zone
Inventors:
Daniel Tell, William R. Bayer
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Jun 10, 1998
Inventors
Daniel Tell
William R. Bayer
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.