Granted Patent
Utility
US 6,148,080 · App. 09/123,445
Mobile telephone with amplified listening
Inventor:
Pascal Collin
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Jul 28, 1998
Inventor
Pascal Collin
Assignee (at issue)
U.S. Philips 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.