Granted Patent
Utility
US 4,850,370 · App. 07/076,228
Method and apparatus for sensing and analyzing electrical activity of the human heart
Inventor:
Gordon Ewbank Dower
Patented Case
View Patent ↗
Granted: Jul 25, 1989
Filed: Jul 22, 1987
Inventor
Gordon Ewbank Dower
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.