Granted Patent
Utility
US 5,235,420 · App. 07/673,958
Multilayer universal video coder
Inventor:
Hamid Gharavi
Patented Case
View Patent ↗
Granted: Aug 10, 1993
Filed: Mar 22, 1991
Inventor
Hamid Gharavi
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.