Granted Patent
Utility
US 6,052,592 · App. 08/790,007
Call routing system for a wireless data device
Inventors:
Michael J. Schellinger, Robert F. D'Avello
Patented Case
View Patent ↗
Granted: Apr 18, 2000
Filed: Jan 28, 1997
Inventors
Michael J. Schellinger
Robert F. D'Avello
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.