Granted Patent
Utility
US 6,621,910 · App. 09/166,259
Method and arrangement for improving leak tolerance of an earpiece in a radio device
Inventors:
Anders Weckström, Jari Suutari, Juha Backman
Patented Case
View Patent ↗
Granted: Sep 16, 2003
Filed: Oct 5, 1998
Inventors
Anders Weckström
Jari Suutari
Juha Backman
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.