Granted Patent
Utility
US 4,833,377 · App. 07/138,370
Current leakage reduction circuit
Inventors:
Joseph Volk, Sr., Joseph A. Volk, Jr.
Patented Case
View Patent ↗
Granted: May 23, 1989
Filed: Dec 28, 1987
Inventors
Joseph Volk, Sr.
Joseph A. Volk, Jr.
Assignee (at issue)
Beta Raven, Inc.
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.