Granted Patent
Utility
US 4,716,463 · App. 06/922,640
Power down sense circuit
Inventors:
Carl W. Stacy, William Chamberlain
Patented Case
View Patent ↗
Granted: Dec 29, 1987
Filed: Oct 24, 1986
Inventors
Carl W. Stacy
William Chamberlain
Assignee (at issue)
Zenith Electronics 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.