Granted Patent
Utility
US 6,304,652 · App. 09/101,505
Merging of calls
Inventor:
Jukka Wallenius
Patented Case
View Patent ↗
Granted: Oct 16, 2001
Filed: Jul 10, 1998
Inventor
Jukka Wallenius
Assignee (at issue)
Nokia Telecommunications 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.