Granted Patent
Utility
US 5,453,780 · App. 08/234,802
Continous presence video signal combiner
Inventors:
Ting-Chung Chen, Shaw-Min Lei, Ming-Ting Sun
Patented Case
View Patent ↗
Granted: Sep 26, 1995
Filed: Apr 28, 1994
Inventors
Ting-Chung Chen
Shaw-Min Lei
Ming-Ting Sun
Assignee (at issue)
Bell Communications Research, 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.