Granted Patent
Utility
US 6,330,593 · App. 09/379,589
System for collecting use data related to playback of recordings
Inventors:
Dale T. Roberts, Ann Greenberg
Patented Case
View Patent ↗
Granted: Dec 11, 2001
Filed: Aug 24, 1999
Inventors
Dale T. Roberts
Ann Greenberg
Assignee (at issue)
CDDB 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.