Granted Patent
Utility
US 4,308,576 · App. 06/136,031
Overload protection for a voltage conversion circuit
Inventor:
Charles A. Clark, Jr.
Patented Case
View Patent ↗
Granted: Dec 29, 1981
Filed: Mar 31, 1980
Inventor
Charles A. Clark, Jr.
Assignee (at issue)
Sperry Corp.
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.