Granted Patent
Utility
US 6,405,027 · App. 09/456,899
Group call for a wireless mobile communication device using bluetooth
Inventor:
John Bell
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Dec 8, 1999
Inventor
John Bell
Assignee (at issue)
Philips Electronics N.A. Corporation
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.