Granted Patent
Utility
US 5,740,521 · App. 08/555,012
Method and circuit for creating frequencies for a radio telephone
Inventors:
Jaakko Hulkko, Merja Vuolteenaho
Patented Case
View Patent ↗
Granted: Apr 14, 1998
Filed: Nov 13, 1995
Inventors
Jaakko Hulkko
Merja Vuolteenaho
Assignee (at issue)
Nokia Mobile Phones Ltd.
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.