Granted Patent
Utility
US 5,574,963 · App. 08/509,322
Audience measurement during a mute mode
Inventors:
Lee S. Weinblatt, Thomas Langer
Patented Case
View Patent ↗
Granted: Nov 12, 1996
Filed: Jul 31, 1995
Inventors
Lee S. Weinblatt
Thomas Langer
Assignee (at issue)
Lee S. Weinblatt
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.