Granted Patent
Utility
US 5,907,794 · App. 08/545,726
Controlling a subscriber station on a direct mode channel
Inventors:
Mika Lehmusto, Mika Heiskari
Patented Case
View Patent ↗
Granted: May 25, 1999
Filed: Nov 2, 1995
Inventors
Mika Lehmusto
Mika Heiskari
Assignee (at issue)
Nokia Telecommunications Oy
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.