Granted Patent
Utility
US 6,404,811 · App. 08/649,889
Interactive multimedia system
Inventors:
John F. Cvetko, Ying K. Kwong, James F. Sandau
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: May 13, 1996
Inventors
John F. Cvetko
Ying K. Kwong
James F. Sandau
Assignee (at issue)
Tektronix, 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.