Granted Patent
Utility
US 4,885,525 · App. 07/343,844
Voltage controllable current source
Inventor:
Walter S. Gontowski, Jr.
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Apr 26, 1989
Inventor
Walter S. Gontowski, Jr.
Assignee (at issue)
Cherry Semiconductor 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.