Granted Patent
Utility
US 4,893,326 · App. 07/046,248
Video-telephone communications system
Inventors:
Joe W. Duran, Michael Kenoyer, Edward H. Cooper, Jr., Joonyoul Maeng
Patented Case
View Patent ↗
Granted: Jan 9, 1990
Filed: May 4, 1987
Inventors
Joe W. Duran
Michael Kenoyer
Edward H. Cooper, Jr.
Joonyoul Maeng
Assignee (at issue)
VideoTelecom Corp.
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.