Granted Patent
Utility
US 4,400,783 · App. 06/184,458
Event-logging system
Inventors:
Philip F. Locke, Jr., Albert H. Maxwell, Jr.
Patented Case
View Patent ↗
Granted: Aug 23, 1983
Filed: Sep 5, 1980
Inventors
Philip F. Locke, Jr.
Albert H. Maxwell, Jr.
Assignee (at issue)
Westinghouse Electric Company LLC
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.