Granted Patent
Utility
US 4,814,685 · App. 07/128,977
Inductive power converter for use with variable input and output voltages
Inventor:
Herman L. Renger
Patented Case
View Patent ↗
Granted: Mar 21, 1989
Filed: Dec 4, 1987
Inventor
Herman L. Renger
Assignee (at issue)
Pacesetter Infusion, Ltd.
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.