Granted Patent
Utility
US 5,212,834 · App. 07/349,161
Circuit for extending the dynamic range of an intermediate level selector
Inventor:
Jouni Nuqvist
Patented Case
View Patent ↗
Granted: May 18, 1993
Filed: May 9, 1989
Inventor
Jouni Nuqvist
Assignee (at issue)
Nokia-Mobira 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.