Granted Patent
Utility
US 4,674,085 · App. 06/815,959
Local area network
Inventors:
William L. Aranguren, Mario A. Restrepo, Michael J. Sidey
Patented Case
View Patent ↗
Granted: Jun 16, 1987
Filed: Oct 6, 1986
Inventors
William L. Aranguren
Mario A. Restrepo
Michael J. Sidey
Assignees (at issue)
American Telephone and Telegraph, Co.
AT&T Information Systems 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.