Granted Patent
Utility
US 5,974,325 · App. 08/400,303
Cellular radio system using common radio backbone
Inventors:
Michael D. Kotzin, Valy Lev, Stephen L. Spear, John S. Ruppel
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Mar 6, 1995
Inventors
Michael D. Kotzin
Valy Lev
Stephen L. Spear
John S. Ruppel
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.