Granted Patent
Utility
US 4,592,048 · App. 06/606,937
Integrated packet switching and circuit switching system
Inventors:
Mark Beckner, James A. Davis, Eric J. Gausmann, Thomas L. Hiller, Philip D. Olson, Gilbert A. Van Dine
Patented Case
View Patent ↗
Granted: May 27, 1986
Filed: May 3, 1984
Inventors
Mark Beckner
James A. Davis
Eric J. Gausmann
Thomas L. Hiller
Philip D. Olson
Gilbert A. Van Dine
Assignee (at issue)
AT&T Bell Laboratories
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.