Granted Patent
Utility
US 6,208,728 · App. 09/408,345
Call waiting in call setup
Inventor:
Jukka Airaksinen
Patented Case
View Patent ↗
Granted: Mar 27, 2001
Filed: Sep 29, 1999
Inventor
Jukka Airaksinen
Assignee (at issue)
Nokia Networks 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.