Granted Patent
Utility
US 4,082,087 · App. 05/766,836
Body contact electrode structure for deriving electrical signals due to physiological activity
Inventor:
David C. Howson
Patented Case
View Patent ↗
Granted: Apr 4, 1978
Filed: Feb 7, 1977
Inventor
David C. Howson
Assignee (at issue)
Isis Medical Instruments
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.