Granted Patent
Utility
US 4,049,004 · App. 05/663,372
"Implantable digital cardiac pacer having externally selectible operating parameters and ""one shot"" digital pulse generator for use therein"
Inventor:
Robert A. Walters
Patented Case
View Patent ↗
Granted: Sep 20, 1977
Filed: Mar 3, 1976
Inventor
Robert A. Walters
Assignee (at issue)
ARCO Medical Products Company
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.