Granted Patent
Utility
US 5,095,902 · App. 07/572,416
Implantable medical stimulation system optionally operable in a bipolar or a unipolar mode
Inventor:
Jan Ljungstroem
Patented Case
View Patent ↗
Granted: Mar 17, 1992
Filed: Aug 27, 1990
Inventor
Jan Ljungstroem
Assignee (at issue)
Siemens Aktiengesellschaft
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.