Granted Patent
Utility
US 6,721,491 · App. 09/469,802
Method and system for manipulation of audio or video signals
Inventor:
Arthur R. Hair
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Dec 22, 1999
Inventor
Arthur R. Hair
Assignee (at issue)
SightSound Technologies, 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.