Granted Patent
Utility
US 6,816,577 · App. 10/160,710
Cellular telephone with audio recording subsystem
Inventor:
James D. Logan
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: May 31, 2002
Inventor
James D. Logan
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.