Granted Patent
Utility
US 5,073,724 · App. 07/553,508
Programmable inverse time delay circuit
Inventor:
David A. Fox
Patented Case
View Patent ↗
Granted: Dec 17, 1991
Filed: Jul 18, 1990
Inventor
David A. Fox
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.