Granted Patent
Utility
US 4,399,819 · App. 06/332,922
Heart pacer mechanical construction
Inventor:
David Cowdery
Patented Case
View Patent ↗
Granted: Aug 23, 1983
Filed: Dec 21, 1981
Inventor
David Cowdery
Assignee (at issue)
Telectronics Pty. Limited
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.