Granted Patent
Utility
US 5,136,579 · App. 07/590,897
Digital communications network with unlimited channel expandability
Inventor:
Quoc Nguyen
Patented Case
View Patent ↗
Granted: Aug 4, 1992
Filed: Oct 1, 1990
Inventor
Quoc Nguyen
Assignee (at issue)
Rockwell International Corporation
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.