Granted Patent
Utility
US 6,543,053 · App. 08/995,043
Interactive video-on-demand system
Inventors:
Victor On-Kwok Li, Wanjiun Liao
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Nov 20, 1997
Inventors
Victor On-Kwok Li
Wanjiun Liao
Assignee (at issue)
The University of Hong Kong
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.