Granted Patent
Utility
US 5,956,639 · App. 08/606,952
Method and apparatus for registering mobile user groups with a radio telecommunication system
Inventors:
Peter J. Armbruster, Kenneth Lee Sowles, James William Bishop, Jr.
Patented Case
View Patent ↗
Granted: Sep 21, 1999
Filed: Feb 26, 1996
Inventors
Peter J. Armbruster
Kenneth Lee Sowles
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.