Granted Patent
Utility
US 5,780,828 · App. 08/602,247
Interactive video systems
Inventors:
Robert Mos, Clay von Mueller
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Feb 15, 1996
Inventors
Robert Mos
Clay von Mueller
Assignee (at issue)
DH TECHNOLOGY, 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.