Granted Patent
Utility
US 4,868,415 · App. 07/194,356
Voltage level conversion circuit
Inventor:
William C. Dunn
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: May 16, 1988
Inventor
William C. Dunn
Assignee (at issue)
Motorola, 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.