Granted Patent
Utility
US 4,471,237 · App. 06/407,897
Output protection circuit for preventing a reverse current
Inventor:
Leonard Kaplan
Patented Case
View Patent ↗
Granted: Sep 11, 1984
Filed: Aug 13, 1982
Inventor
Leonard Kaplan
Assignee (at issue)
RCA 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.