Granted Patent
Utility
US 4,674,512 · App. 06/825,751
Medical electrode for monitoring and diagnostic use
Inventor:
David Rolf
Patented Case
View Patent ↗
Granted: Jun 23, 1987
Filed: Feb 3, 1986
Inventor
David Rolf
Assignee (at issue)
LecTec Corporation
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.