Granted Patent
Utility
US 4,516,581 · App. 06/506,043
EKG electrode
Inventor:
Robert W. Sessions
Patented Case
View Patent ↗
Granted: May 14, 1985
Filed: Jun 20, 1983
Inventor
Robert W. Sessions
Assignee (at issue)
Ferris Mfg. 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.