Granted Patent
Utility
US 6,157,834 · App. 08/998,565
Terrestrial and satellite cellular network interoperability
Inventors:
Jim E. Helm, Steve Magee, James William Bishop, Jr.
Patented Case
View Patent ↗
Granted: Dec 5, 2000
Filed: Dec 29, 1997
Inventors
Jim E. Helm
Steve Magee
James William Bishop, Jr.
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.