Granted Patent
Utility
US 5,734,974 · App. 08/625,435
Selective call receivers with stepwise variable gain control
Inventors:
Edgar H. Callaway, Jr., James G. Mittel, Vance H. Peterson, Burkhard Dick, Knud Holtvoeth, Wilfried Knop
Patented Case
View Patent ↗
Granted: Mar 31, 1998
Filed: Mar 27, 1996
Inventors
Edgar H. Callaway, Jr.
James G. Mittel
Vance H. Peterson
Burkhard Dick
Knud Holtvoeth
Wilfried Knop
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.