Granted Patent
Utility
US 6,078,821 · App. 09/030,663
Cordless radiotelephone system having an extendable geographic coverage area and method therefor
Inventors:
Kevin D. Kaschke, John A. Kalenowsky, Michael P. Metroka
Patented Case
View Patent ↗
Granted: Jun 20, 2000
Filed: Feb 25, 1998
Inventors
Kevin D. Kaschke
John A. Kalenowsky
Michael P. Metroka
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.