Granted Patent
Utility
US 4,931,791 · App. 07/067,104
Shorted-coaxial-cable detector for local-area networks
Inventor:
William C. Mallard, Jr.
Patented Case
View Patent ↗
Granted: Jun 5, 1990
Filed: Jun 25, 1987
Inventor
William C. Mallard, Jr.
Assignee (at issue)
Digital Equipment 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.