Granted Patent
Utility
US 4,893,306 · App. 07/118,977
Method and apparatus for multiplexing circuit and packet traffic
Inventors:
Hung-Hsiang Jonathan Chao, Sang H. Lee, Liang Wu
Patented Case
View Patent ↗
Granted: Jan 9, 1990
Filed: Nov 10, 1987
Inventors
Hung-Hsiang Jonathan Chao
Sang H. Lee
Liang Wu
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.