Granted Patent
Utility
US 4,848,335 · App. 07/156,540
Return electrode contact monitor
Inventor:
Michael R. Manes
Patented Case
View Patent ↗
Granted: Jul 18, 1989
Filed: Feb 16, 1988
Inventor
Michael R. Manes
Assignee (at issue)
Aspen Laboratories, 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.