Granted Patent
Utility
US 6,611,813 · App. 09/488,047
Digital audio and video playback with performance complement testing
Inventor:
Timothy R. Bratton
Patented Case
View Patent ↗
Granted: Aug 26, 2003
Filed: Jan 20, 2000
Inventor
Timothy R. Bratton
Assignee (at issue)
Listen.com Inc.
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.