Granted Patent
Utility
US 5,628,774 · App. 08/429,886
Cardiac lead with composite insulating structure
Inventors:
John R. Helland, Diane M. Muff
Patented Case
View Patent ↗
Granted: May 13, 1997
Filed: Apr 27, 1995
Inventors
John R. Helland
Diane M. Muff
Assignee (at issue)
INCON-TROL CORP.
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.