Granted Patent
Utility
US 6,477,176 · App. 08/809,241
Simultaneous transmission of speech and data on a mobile communications system
Inventors:
Jari Hamalainen, Janne Jormalainen
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Jun 2, 1997
Inventors
Jari Hamalainen
Janne Jormalainen
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.