Granted Patent
Utility
US 5,206,638 · App. 07/647,591
Method and apparatus for exchanging data within a digital communications system
Inventor:
Nicholas W. McKeown
Patented Case
View Patent ↗
Granted: Apr 27, 1993
Filed: Jan 28, 1991
Inventor
Nicholas W. McKeown
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.